Whether the window should receive the input focus.
Whether the window frame should have a close button.
Whether or not the widget is double buffered.
Whether the window should receive the input focus when mapped.
When %TRUE, the dialog has a separator bar above its buttons.
Enables or disables the emission of #GtkWidget::query-tooltip on widget.
A value of %TRUE indicates that widget can have a tooltip, in this case
the widget will be queried using #GtkWidget::query-tooltip to determine
whether it will provide a tooltip or not.
Note that setting this property to %TRUE for the first time will change the event masks of the GdkWindows of this widget to include leave-notify and motion-notify events. This cannot and will not be undone when the property is set to %FALSE again.
The :icon-name property specifies the name of the themed icon to use as the window icon. See #GtkIconTheme for more details.
The requested opacity of the window. See gtk_window_set_opacity() for more details about window opacity.
The :startup-id is a write-only property for setting window's startup notification identifier. See gtk_window_set_startup_id() for more details.
Sets the text of tooltip to be the given string, which is marked up with the Pango text markup language. Also see gtk_tooltip_set_markup().
This is a convenience property which will take care of getting the tooltip shown if the given string is not %NULL: #GtkWidget:has-tooltip will automatically be set to %TRUE and there will be taken care of #GtkWidget::query-tooltip in the default signal handler.
Sets the text of tooltip to be the given string.
Also see gtk_tooltip_set_text().
This is a convenience property which will take care of getting the tooltip shown if the given string is not %NULL: #GtkWidget:has-tooltip will automatically be set to %TRUE and there will be taken care of #GtkWidget::query-tooltip in the default signal handler.
The transient parent of the window. See gtk_window_set_transient_for() for more details about transient windows.
For widgets that can be "activated" (buttons, menu items, etc.)
this function activates them. Activation is what happens when you
press Enter on a widget during key navigation. If widget isn't
activatable, the function returns %FALSE.
Activates the default widget for the window, unless the current focused widget has been configured to receive the default action (see gtk_widget_set_receives_default()), in which case the focused widget is activated.
Activates the current focused widget within the window.
Activates mnemonics and accelerators for this #GtkWindow. This is normally called by the default ::key_press_event handler for toplevel windows, however in some cases it may be useful to call this directly when overriding the standard key handling for a toplevel window.
Adds widget to container. Typically used for simple containers
such as #GtkWindow, #GtkFrame, or #GtkButton; for more complicated
layout containers such as #GtkBox or #GtkTable, this function will
pick default packing parameters that may not be correct. So
consider functions such as gtk_box_pack_start() and
gtk_table_attach() as an alternative to gtk_container_add() in
those cases. A widget may be added to only one container at a time;
you can't place the same widget inside two different containers.
Associate accel_group with window, such that calling
gtk_accel_groups_activate() on window will activate accelerators
in accel_group.
a #GtkAccelGroup
Installs an accelerator for this widget in accel_group that causes
accel_signal to be emitted if the accelerator is activated.
The accel_group needs to be added to the widget's toplevel via
gtk_window_add_accel_group(), and the signal must be of type %G_RUN_ACTION.
Accelerators added through this function are not user changeable during
runtime. If you want to support accelerators that can be changed by the
user, use gtk_accel_map_add_entry() and gtk_widget_set_accel_path() or
gtk_menu_item_set_accel_path() instead.
widget signal to emit on accelerator activation
accel group for this widget, added to its toplevel
GDK keyval of the accelerator
modifier key combination of the accelerator
flag accelerators, e.g. %GTK_ACCEL_VISIBLE
Adds an activatable widget to the action area of a #GtkDialog,
connecting a signal handler that will emit the #GtkDialog::response
signal on the dialog when the widget is activated. The widget is
appended to the end of the dialog's action area. If you want to add a
non-activatable widget, simply pack it into the action_area field
of the #GtkDialog struct.
Adds a button with the given text (or a stock button, if button_text is a
stock ID) and sets things up so that clicking the button will emit the
#GtkDialog::response signal with the given response_id. The button is
appended to the end of the dialog's action area. The button widget is
returned, but usually you don't need it.
text of button, or stock ID
response ID for the button
Adds the events in the bitfield events to the event mask for
widget. See gtk_widget_set_events() for details.
an event mask, see #GdkEventMask
Adds a widget to the list of mnemonic labels for this widget. (See gtk_widget_list_mnemonic_labels()). Note the list of mnemonic labels for the widget is cleared when the widget is destroyed, so the caller must make sure to update its internal state at this point as well, by using a connection to the #GtkWidget::destroy signal or a weak notifier.
Starts moving a window. This function is used if an application has window movement grips. When GDK can support it, the window movement will be done using the standard mechanism for the window manager or windowing system. Otherwise, GDK will try to emulate window movement, potentially not all that well, depending on the windowing system.
mouse button that initiated the drag
X position where the user clicked to initiate the drag, in root window coordinates
Y position where the user clicked to initiate the drag
timestamp from the click event that initiated the drag
Starts resizing a window. This function is used if an application has window resizing controls. When GDK can support it, the resize will be done using the standard mechanism for the window manager or windowing system. Otherwise, GDK will try to emulate window resizing, potentially not all that well, depending on the windowing system.
position of the resize control
mouse button that initiated the drag
X position where the user clicked to initiate the drag, in root window coordinates
Y position where the user clicked to initiate the drag
timestamp from the click event that initiated the drag
Creates a binding between source_property on source and target_property
on target.
Whenever the source_property is changed the target_property is
updated using the same value. For instance:
g_object_bind_property (action, "active", widget, "sensitive", 0);
Will result in the "sensitive" property of the widget #GObject instance to be updated with the same value of the "active" property of the action #GObject instance.
If flags contains %G_BINDING_BIDIRECTIONAL then the binding will be mutual:
if target_property on target changes then the source_property on source
will be updated as well.
The binding will automatically be removed when either the source or the
target instances are finalized. To remove the binding without affecting the
source and the target you can just call g_object_unref() on the returned
#GBinding instance.
Removing the binding by calling g_object_unref() on it must only be done if
the binding, source and target are only used from a single thread and it
is clear that both source and target outlive the binding. Especially it
is not safe to rely on this if the binding, source or target can be
finalized from different threads. Keep another reference to the binding and
use g_binding_unbind() instead to be on the safe side.
A #GObject can have multiple bindings.
the property on source to bind
the target #GObject
the property on target to bind
flags to pass to #GBinding
Creates a binding between source_property on source and target_property
on target, allowing you to set the transformation functions to be used by
the binding.
This function is the language bindings friendly version of g_object_bind_property_full(), using #GClosures instead of function pointers.
the property on source to bind
the target #GObject
the property on target to bind
flags to pass to #GBinding
a #GClosure wrapping the transformation function from the source to the target, or %NULL to use the default
a #GClosure wrapping the transformation function from the target to the source, or %NULL to use the default
Determines whether an accelerator that activates the signal
identified by signal_id can currently be activated.
This is done by emitting the #GtkWidget::can-activate-accel
signal on widget; if the signal isn't overridden by a
handler or in a derived widget, then the default check is
that the widget must be sensitive, and the widget and all
its ancestors mapped.
the ID of a signal installed on widget
This function is used by custom widget implementations; if you're writing an app, you'd use gtk_widget_grab_focus() to move the focus to a particular widget, and gtk_container_set_focus_chain() to change the focus tab order. So you may want to investigate those functions instead.
gtk_widget_child_focus() is called by containers as the user moves
around the window using keyboard shortcuts. direction indicates
what kind of motion is taking place (up, down, left, right, tab
forward, tab backward). gtk_widget_child_focus() emits the
#GtkWidget::focus signal; widgets override the default handler
for this signal in order to implement appropriate focus behavior.
The default ::focus handler for a widget should return %TRUE if
moving in direction left the focus on a focusable location inside
that widget, and %FALSE if moving in direction moved the focus
outside the widget. If returning %TRUE, widgets normally
call gtk_widget_grab_focus() to place the focus accordingly;
if returning %FALSE, they don't modify the current focus location.
This function replaces gtk_container_focus() from GTK+ 1.2. It was necessary to check that the child was visible, sensitive, and focusable before calling gtk_container_focus(). gtk_widget_child_focus() returns %FALSE if the widget is not currently in a focusable state, so there's no need for those checks.
direction of focus movement
Emits a #GtkWidget::child-notify signal for the
child property `child_property` on `widget`.This is the analogue of g_object_notify() for child properties.
the name of a child property installed on the class of widget<!-- -->'s parent
Returns the type of the children supported by the container.
Note that this may return %G_TYPE_NONE to indicate that no more children can be added, e.g. for a #GtkPaned which already has two children.
Same as gtk_widget_path(), but always uses the name of a widget's type, never uses a custom name set with gtk_widget_set_name().
Creates a new #PangoLayout with the appropriate font map, font description, and base direction for drawing text for this widget.
If you keep a #PangoLayout created in this way around, in order to notify the layout of changes to the base direction or font of this widget, you must call pango_layout_context_changed() in response to the #GtkWidget::style-set and #GtkWidget::direction-changed signals for the widget.
text to set on the layout (can be %NULL)
This is similar to gtk_buildable_parser_finished() but is
called once for each custom tag handled by the buildable.
a #GtkBuilder
child object or %NULL for non-child tags
the name of the tag
user data created in custom_tag_start
This is called at the end of each custom element handled by the buildable.
#GtkBuilder used to construct this object
child object or %NULL for non-child tags
name of tag
user data that will be passed in to parser functions
This is called for each unknown element under <child>.
a #GtkBuilder used to construct this object
child object or %NULL for non-child tags
name of tag
Asks to deiconify (i.e. unminimize) the specified window. Note
that you shouldn't assume the window is definitely deiconified
afterward, because other entities (e.g. the user or window manager) could iconify it
again before your code which assumes deiconification gets to run.
You can track iconification via the "window-state-event" signal on #GtkWidget.
Destroys a widget. Equivalent to gtk_object_destroy(), except that you don't have to cast the widget to #GtkObject. When a widget is destroyed, it will break any references it holds to other objects. If the widget is inside a container, the widget will be removed from the container. If the widget is a toplevel (derived from #GtkWindow), it will be removed from the list of toplevels, and the reference GTK+ holds to it will be removed. Removing a widget from its container or the list of toplevels results in the widget being finalized, unless you've added additional references to the widget with g_object_ref().
In most cases, only toplevel widgets (windows) require explicit destruction, because when you destroy a toplevel its children will be destroyed as well.
This function sets *widget_pointer to %NULL if widget_pointer !=
%NULL. It's intended to be used as a callback connected to the
"destroy" signal of a widget. You connect gtk_widget_destroyed()
as a signal handler, and pass the address of your widget variable
as user data. Then when the widget is destroyed, the variable will
be set to %NULL. Useful for example to avoid multiple copies
of the same dialog.
In GTK+ 1.2, this function would immediately render the
region area of a widget, by invoking the virtual draw method of a
widget. In GTK+ 2.0, the draw method is gone, and instead
gtk_widget_draw() simply invalidates the specified region of the
widget, then updates the invalid region of the widget immediately.
Usually you don't want to update the region immediately for
performance reasons, so in general gtk_widget_queue_draw_area() is
a better choice if you want to draw a region of a widget.
Ensures that widget has a style (widget->style). Not a very useful
function; most of the time, if you want the style, the widget is
realized, and realized widgets are guaranteed to have a style
already.
Notifies the user about an input-related error on this widget. If the #GtkSettings:gtk-error-bell setting is %TRUE, it calls gdk_window_beep(), otherwise it does nothing.
Note that the effect of gdk_window_beep() can be configured in many ways, depending on the windowing backend and the desktop environment or window manager that is used.
Rarely-used function. This function is used to emit the event signals on a widget (those signals should never be emitted without using this function to do so). If you want to synthesize an event though, don't use this function; instead, use gtk_main_do_event() so the event will behave as if it were in the event queue. Don't synthesize expose events; instead, use gdk_window_invalidate_rect() to invalidate a region of the window.
This function is intended for #GObject implementations to re-enforce a [floating][floating-ref] object reference. Doing this is seldom required: all #GInitiallyUnowneds are created with a floating reference which usually just needs to be sunken by calling g_object_ref_sink().
Stops emission of #GtkWidget::child-notify signals on widget. The
signals are queued until gtk_widget_thaw_child_notify() is called
on widget.
This is the analogue of g_object_freeze_notify() for child properties.
Increases the freeze count on object. If the freeze count is
non-zero, the emission of "notify" signals on object is
stopped. The signals are queued until the freeze count is decreased
to zero. Duplicate notifications are squashed so that at most one
#GObject::notify signal is emitted for each property modified while the
object is frozen.
This is necessary for accessors that modify multiple properties to prevent premature notification while the object is still being modified.
Asks to place window in the fullscreen state. Note that you
shouldn't assume the window is definitely full screen afterward,
because other entities (e.g. the user or window manager) could unfullscreen it
again, and not all window managers honor requests to fullscreen
windows. But normally the window will end up fullscreen. Just
don't write code that crashes if not.
You can track the fullscreen state via the "window-state-event" signal on #GtkWidget.
Gets the value set by gtk_window_set_accept_focus().
Returns the accessible object that describes the widget to an assistive technology.
If no accessibility library is loaded (i.e. no ATK implementation library is
loaded via
The documentation of the
Gets the first ancestor of widget with type widget_type. For example,
widget. No reference will be
added to the returned widget; it should not be unreferenced. See note
about checking for a toplevel #GtkWindow in the docs for
gtk_widget_get_toplevel().
Note that unlike gtk_widget_is_ancestor(), gtk_widget_get_ancestor()
considers widget to be an ancestor of itself.
ancestor type
Determines whether the application intends to draw on the widget in an #GtkWidget::expose-event handler.
See gtk_widget_set_app_paintable()
Retrieves the border width of the container. See gtk_container_set_border_width().
Determines whether widget can be a default widget. See
gtk_widget_set_can_default().
Determines whether widget can own the input focus. See
gtk_widget_set_can_focus().
This function is only for use in widget implementations. Obtains
widget->requisition, unless someone has forced a particular
geometry on the widget (e.g. with gtk_widget_set_size_request()),
in which case it returns that geometry instead of the widget's
requisition.
This function differs from gtk_widget_size_request() in that
it retrieves the last size request value from widget->requisition,
while gtk_widget_size_request() actually calls the "size_request" method
on widget to compute the size request and fill in widget->requisition,
and only then returns widget->requisition.
Because this function does not call the "size_request" method, it
can only be used when you know that widget->requisition is
up-to-date, that is, gtk_widget_size_request() has been called
since the last time a resize was queued. In general, only container
implementations have this information; applications should use
gtk_widget_size_request().
a #GtkRequisition to be filled in
Gets the value set with gtk_widget_set_child_visible(). If you feel a need to use this function, your code probably needs reorganization.
This function is only useful for container implementations and never should be called by an application.
Returns the clipboard object for the given selection to
be used with widget. widget must have a #GdkDisplay
associated with it, so must be attached to a toplevel
window.
a #GdkAtom which identifies the clipboard to use. %GDK_SELECTION_CLIPBOARD gives the default clipboard. Another common value is %GDK_SELECTION_PRIMARY, which gives the primary X selection.
Obtains the composite name of a widget.
Gets a named field from the objects table of associations (see g_object_set_data()).
Gets a named field from the objects table of associations (see g_object_set_data()).
name of the key for that association
Returns whether the window has been set to have decorations such as a title bar via gtk_window_set_decorated().
Gets the default size of the window. A value of -1 for the width or height indicates that a default size has not been explicitly set for that dimension, so the "natural" size of the window will be used.
location to store the default width, or %NULL
location to store the default height, or %NULL
Returns whether the window has been set to have a close button via gtk_window_set_deletable().
Returns whether the window will be destroyed with its transient parent. See gtk_window_set_destroy_with_parent ().
Gets the reading direction for a particular widget. See gtk_widget_set_direction().
Get the #GdkDisplay for the toplevel window associated with this widget. This function can only be called after the widget has been added to a widget hierarchy with a #GtkWindow at the top.
In general, you should only create display specific resources when a widget has been realized, and you should free those resources when the widget is unrealized.
Determines whether the widget is double buffered.
See gtk_widget_set_double_buffered()
Returns the event mask for the widget (a bitfield containing flags from the #GdkEventMask enumeration). These are the events that the widget will receive.
Retrieves the extension events the widget will receive; see gdk_input_set_extension_events().
Retrieves the horizontal focus adjustment for the container. See gtk_container_set_focus_hadjustment ().
Gets the value set by gtk_window_set_focus_on_map().
Retrieves the vertical focus adjustment for the container. See gtk_container_set_focus_vadjustment().
(Note: this is a special-purpose function intended for the framebuffer port; see gtk_window_set_has_frame(). It will not return the size of the window border drawn by the window manager, which is the normal case when using a windowing system. See gdk_window_get_frame_extents() to get the standard window border extents.)
Retrieves the dimensions of the frame window for this toplevel. See gtk_window_set_has_frame(), gtk_window_set_frame_dimensions().
Returns the group for window or the default group, if
window is %NULL or if window does not have an explicit
window group.
Accessor for whether the window has a frame window exterior to
window->window. Gets the value set by gtk_window_set_has_frame ().
Accessor for whether the dialog has a separator.
Returns the current value of the has-tooltip property. See GtkWidget:has-tooltip for more information.
Determines whether widget has a #GdkWindow of its own. See
gtk_widget_set_has_window().
Gets the value set by gtk_window_set_icon() (or if you've called gtk_window_set_icon_list(), gets the first icon in the icon list).
Retrieves the list of icons set by gtk_window_set_icon_list(). The list is copied, but the reference count on each member won't be incremented.
Returns the name of the themed icon for the window, see gtk_window_set_icon_name().
Whether the widget is mapped.
Returns the mnemonic modifier for this window. See gtk_window_set_mnemonic_modifier().
Returns whether the window is modal. See gtk_window_set_modal().
Returns the current modifier style for the widget. (As set by gtk_widget_modify_style().) If no style has previously set, a new #GtkRcStyle will be created with all values unset, and set as the modifier style for the widget. If you make changes to this rc style, you must call gtk_widget_modify_style(), passing in the returned rc style, to make sure that your changes take effect.
Caution: passing the style back to gtk_widget_modify_style() will normally end up destroying it, because gtk_widget_modify_style() copies the passed-in style and sets the copy as the new modifier style, thus dropping any reference to the old modifier style. Add a reference to the modifier style if you want to keep it alive.
Retrieves the name of a widget. See gtk_widget_set_name() for the significance of widget names.
Returns the current value of the GtkWidget:no-show-all property, which determines whether calls to gtk_widget_show_all() and gtk_widget_hide_all() will affect this widget.
Fetches the requested opacity for this window. See gtk_window_set_opacity().
Gets a #PangoContext with the appropriate font map, font description, and base direction for this widget. Unlike the context returned by gtk_widget_create_pango_context(), this context is owned by the widget (it can be used until the screen for the widget changes or the widget is removed from its toplevel), and will be updated to match any changes to the widget's attributes.
If you create and keep a #PangoLayout using this context, you must deal with changes to the context by calling pango_layout_context_changed() on the layout in response to the #GtkWidget::style-set and #GtkWidget::direction-changed signals for the widget.
Obtains the location of the mouse pointer in widget coordinates.
Widget coordinates are a bit odd; for historical reasons, they are
defined as widget->window coordinates for widgets that are not
#GTK_NO_WINDOW widgets, and are relative to widget->allocation.x,
widget->allocation.y for widgets that are #GTK_NO_WINDOW widgets.
This function returns the position you need to pass to
gtk_window_move() to keep window in its current position. This
means that the meaning of the returned value varies with window
gravity. See gtk_window_move() for more details.
If you haven't changed the window gravity, its gravity will be #GDK_GRAVITY_NORTH_WEST. This means that gtk_window_get_position() gets the position of the top-left corner of the window manager frame for the window. gtk_window_move() sets the position of this same top-left corner.
gtk_window_get_position() is not 100% reliable because the X Window System does not specify a way to obtain the geometry of the decorations placed on a window by the window manager. Thus GTK+ is using a "best guess" that works with most window managers.
Moreover, nearly all window managers are historically broken with respect to their handling of window gravity. So moving a window to its current position as returned by gtk_window_get_position() tends to result in moving the window slightly. Window managers are slowly getting better over time.
If a window has gravity #GDK_GRAVITY_STATIC the window manager frame is not relevant, and thus gtk_window_get_position() will always produce accurate results. However you can't use static gravity to do things like place a window in a corner of the screen, because static gravity ignores the window manager decorations.
If you are saving and restoring your application's window positions, you should know that it's impossible for applications to do this without getting it somewhat wrong because applications do not have sufficient knowledge of window manager state. The Correct Mechanism is to support the session management protocol (see the "GnomeClient" object in the GNOME libraries for example) and allow the window manager to save your window sizes and positions.
Gets a property of an object.
The value can be:
In general, a copy is made of the property contents and the caller is responsible for freeing the memory by calling g_value_unset().
Note that g_object_get_property() is really intended for language bindings, g_object_get() is much more convenient for C programming.
the name of the property to get
return location for the property value
This function gets back user data pointers stored via g_object_set_qdata().
A #GQuark, naming the user data pointer
Determines whether widget is realized.
Determines whether widget is alyways treated as default widget
withing its toplevel when it has the focus, even if another widget
is the default.
See gtk_widget_set_receives_default().
Retrieves the widget's requisition.
This function should only be used by widget implementations in order to figure whether the widget's requisition has actually changed after some internal state change (so that they can call gtk_widget_queue_resize() instead of gtk_widget_queue_draw()).
Normally, gtk_widget_size_request() should be used.
Gets the value set by gtk_window_set_resizable().
Returns the resize mode for the container. See gtk_container_set_resize_mode ().
Returns the role of the window. See gtk_window_set_role() for further explanation.
Get the root window where this widget is located. This function can only be called after the widget has been added to a widget hierarchy with #GtkWindow at the top.
The root window is useful for such purposes as creating a popup #GdkWindow associated with the window. In general, you should only create display specific resources when a widget has been realized, and you should free those resources when the widget is unrealized.
Returns the widget's sensitivity (in the sense of returning the value that has been set using gtk_widget_set_sensitive()).
The effective sensitivity of a widget is however determined by both its own and its parent widget's sensitivity. See gtk_widget_is_sensitive().
Obtains the current size of window. If window is not onscreen,
it returns the size GTK+ will suggest to the window manager for the initial window
size (but this is not reliably the same as the size the window
manager will actually select). The size obtained by
gtk_window_get_size() is the last size received in a
#GdkEventConfigure, that is, GTK+ uses its locally-stored size,
rather than querying the X server for the size. As a result, if you
call gtk_window_resize() then immediately call
gtk_window_get_size(), the size won't have taken effect yet. After
the window manager processes the resize request, GTK+ receives
notification that the size has changed via a configure event, and
the size of the window gets updated.
Note 1: Nearly any use of this function creates a race condition, because the size of the window may change between the time that you get the size and the time that you perform some action assuming that size is the current size. To avoid race conditions, connect to "configure-event" on the window and adjust your size-dependent state to match the size delivered in the #GdkEventConfigure.
Note 2: The returned size does
Note 3: If you are getting a window size in order to position the window onscreen, there may be a better way. The preferred way is to simply set the window's semantic type with gtk_window_set_type_hint(), which allows the window manager to e.g. center dialogs. Also, if you set the transient parent of dialogs with gtk_window_set_transient_for() window managers will often center the dialog over its parent window. It's much preferred to let the window manager handle these things rather than doing it yourself, because all apps will behave consistently and according to user prefs if the window manager handles it. Also, the window manager can take the size of the window decorations/border into account, while your application cannot.
In any case, if you insist on application-specified window
positioning, there's
Gets the size request that was explicitly set for the widget using
gtk_widget_set_size_request(). A value of -1 stored in width or
height indicates that that dimension has not been set explicitly
and the natural requisition of the widget will be used intead. See
gtk_widget_set_size_request(). To get the size a widget will
actually use, call gtk_widget_size_request() instead of
this function.
Gets the value set by gtk_window_set_skip_pager_hint().
Gets the value set by gtk_window_set_skip_taskbar_hint()
Retrieves the title of the window. See gtk_window_set_title().
Gets the contents of the tooltip for widget.
Gets the contents of the tooltip for widget.
This function returns the topmost widget in the container hierarchy
widget is a part of. If widget has no parent widgets, it will be
returned as the topmost widget. No reference will be added to the
returned widget; it should not be unreferenced.
Note the difference in behavior vs. gtk_widget_get_ancestor();
widget wasn't inside a toplevel window, and if the
window was inside a #GtkWindow-derived widget which was in turn
inside the toplevel #GtkWindow. While the second case may
seem unlikely, it actually happens when a #GtkPlug is embedded
inside a #GtkSocket within the same application.
To reliably find the toplevel #GtkWindow, use gtk_widget_get_toplevel() and check if the %TOPLEVEL flags is set on the result. |[ GtkWidget *toplevel = gtk_widget_get_toplevel (widget); if (gtk_widget_is_toplevel (toplevel)) { /* Perform action on toplevel. */ }
Gets the type hint for this window. See gtk_window_set_type_hint().
Gets the value set by gtk_window_set_urgency_hint()
Determines whether the widget is visible. Note that this doesn't take into account whether the widget's parent is also visible or the widget is obscured in any way.
See gtk_widget_set_visible().
Gets the type of the window. See #GtkWindowType.
Gets n_properties properties for an object.
Obtained properties will be set to values. All properties must be valid.
Warnings will be emitted and undefined behaviour may result if invalid
properties are passed in.
the names of each property to get
the values of each property to get
Causes widget to become the default widget. widget must have the
%GTK_CAN_DEFAULT flag set; typically you have to set this flag
yourself by calling widget,
%TRUE)
Causes widget to have the keyboard focus for the #GtkWindow it's
inside. widget must be a focusable widget, such as a #GtkEntry;
something like #GtkFrame won't work.
More precisely, it must have the %GTK_CAN_FOCUS flag set. Use gtk_widget_set_can_focus() to modify that flag.
The widget also needs to be realized and mapped. This is indicated by the related signals. Grabbing the focus immediately after creating the widget will likely fail and cause critical warnings.
Determines whether the widget is currently grabbing events, so it is the only widget receiving input events (keyboard and mouse).
See also gtk_grab_add().
Returns whether window has an explicit window group.
Determines if the widget style has been looked up through the rc mechanism.
Checks whether there is a #GdkScreen is associated with this widget. All toplevel widgets have an associated screen, and all widgets added into a hierarchy with a toplevel window at the top.
Reverses the effects of gtk_widget_show(), causing the widget to be hidden (invisible to the user).
Recursively hides a widget and any child widgets.
Utility function; intended to be connected to the #GtkWidget::delete-event signal on a #GtkWindow. The function calls gtk_widget_hide() on its argument, then returns %TRUE. If connected to ::delete-event, the result is that clicking the close button for a window (on the window frame, top right corner usually) will hide but not destroy the window. By default, GTK+ destroys windows when ::delete-event is received.
Asks to iconify (i.e. minimize) the specified window. Note that
you shouldn't assume the window is definitely iconified afterward,
because other entities (e.g. the user or window manager) could deiconify it
again, or there may not be a window manager in which case
iconification isn't possible, etc. But normally the window will end
up iconified. Just don't write code that crashes if not.
It's permitted to call this function before showing a window, in which case the window will be iconified before it ever appears onscreen.
You can track iconification via the "window-state-event" signal on #GtkWidget.
Sets an input shape for this widget's GDK window. This allows for windows which react to mouse click in a nonrectangular region, see gdk_window_input_shape_combine_mask() for more information.
shape to be added, or %NULL to remove an existing shape
X position of shape mask with respect to window
Y position of shape mask with respect to window
Computes the intersection of a widget's area and area, storing
the intersection in intersection, and returns %TRUE if there was
an intersection. intersection may be %NULL if you're only
interested in whether there was an intersection.
a rectangle
rectangle to store intersection of widget and area
Whether widget can rely on having its alpha channel
drawn correctly. On X11 this function returns whether a
compositing manager is running for widget's screen.
Please note that the semantics of this call will change in the future if used on a widget that has a composited window in its hierarchy (as set by gdk_window_set_composited()).
Determines whether widget can be drawn to. A widget can be drawn
to if it is mapped and visible.
Checks whether object has a [floating][floating-ref] reference.
Returns the widget's effective sensitivity, which means it is sensitive itself and also its parent widget is sensntive
Determines whether widget is a toplevel widget. Currently only
#GtkWindow and #GtkInvisible are toplevel widgets. Toplevel
widgets have no parent widget.
This function should be called whenever keyboard navigation within a single widget hits a boundary. The function emits the #GtkWidget::keynav-failed signal on the widget and its return value should be interpreted in a way similar to the return value of gtk_widget_child_focus():
When %TRUE is returned, stay in the widget, the failed keyboard navigation is Ok and/or there is nowhere we can/should move the focus to.
When %FALSE is returned, the caller should continue with keyboard navigation outside the widget, e.g. by calling gtk_widget_child_focus() on the widget's toplevel.
The default ::keynav-failed handler returns %TRUE for %GTK_DIR_TAB_FORWARD and %GTK_DIR_TAB_BACKWARD. For the other values of #GtkDirectionType, it looks at the #GtkSettings:gtk-keynav-cursor-only setting and returns %FALSE if the setting is %TRUE. This way the entire user interface becomes cursor-navigatable on input devices such as mobile phones which only have cursor keys but no tab key.
Whenever the default handler returns %TRUE, it also calls gtk_widget_error_bell() to notify the user of the failed keyboard navigation.
A use case for providing an own implementation of ::keynav-failed (either by connecting to it or by overriding it) would be a row of #GtkEntry widgets where the user should be able to navigate the entire row with the cursor keys, as e.g. known from user interfaces that require entering license keys.
direction of focus movement
Lists the closures used by widget for accelerator group connections
with gtk_accel_group_connect_by_path() or gtk_accel_group_connect().
The closures can be used to monitor accelerator changes on widget,
by connecting to the GtkAccelGroup::accel-changed signal of the
#GtkAccelGroup of a closure which can be found out with
gtk_accel_group_from_accel_closure().
Returns a newly allocated list of the widgets, normally labels, for which this widget is a the target of a mnemonic (see for example, gtk_label_set_mnemonic_widget()).
The widgets in the list are not individually referenced. If you
want to iterate through the list and perform actions involving
callbacks that might destroy the widgets, you
This function is only for use in widget implementations. Causes a widget to be mapped if it isn't already.
Asks to maximize window, so that it becomes full-screen. Note that
you shouldn't assume the window is definitely maximized afterward,
because other entities (e.g. the user or window manager) could unmaximize it
again, and not all window managers support maximization. But
normally the window will end up maximized. Just don't write code
that crashes if not.
It's permitted to call this function before showing a window, in which case the window will be maximized when it appears onscreen initially.
You can track maximization via the "window-state-event" signal on #GtkWidget.
Activates the targets associated with the mnemonic.
Sets the base color for a widget in a particular state. All other style values are left untouched. The base color is the background color used along with the text color (see gtk_widget_modify_text()) for widgets such as #GtkEntry and #GtkTextView. See also gtk_widget_modify_style().
Note that "no window" widgets (which have the %GTK_NO_WINDOW flag set) draw on their parent container's window and thus may not draw any background themselves. This is the case for e.g. #GtkLabel. To modify the background of such widgets, you have to set the base color on their parent; if you want to set the background of a rectangular area around a label, try placing the label in a #GtkEventBox widget and setting the base color on that.
the state for which to set the base color
the color to assign (does not need to be allocated), or %NULL to undo the effect of previous calls to of gtk_widget_modify_base().
Sets the background color for a widget in a particular state. All other style values are left untouched. See also gtk_widget_modify_style().
Note that "no window" widgets (which have the %GTK_NO_WINDOW flag set) draw on their parent container's window and thus may not draw any background themselves. This is the case for e.g. #GtkLabel. To modify the background of such widgets, you have to set the background color on their parent; if you want to set the background of a rectangular area around a label, try placing the label in a #GtkEventBox widget and setting the background color on that.
the state for which to set the background color
the color to assign (does not need to be allocated), or %NULL to undo the effect of previous calls to of gtk_widget_modify_bg().
Sets the cursor color to use in a widget, overriding the #GtkWidget:cursor-color and #GtkWidget:secondary-cursor-color style properties. All other style values are left untouched. See also gtk_widget_modify_style().
the color to use for primary cursor (does not need to be allocated), or %NULL to undo the effect of previous calls to of gtk_widget_modify_cursor().
the color to use for secondary cursor (does not need to be allocated), or %NULL to undo the effect of previous calls to of gtk_widget_modify_cursor().
Sets the foreground color for a widget in a particular state. All other style values are left untouched. See also gtk_widget_modify_style().
the state for which to set the foreground color
the color to assign (does not need to be allocated), or %NULL to undo the effect of previous calls to of gtk_widget_modify_fg().
Sets the font to use for a widget. All other style values are left untouched. See also gtk_widget_modify_style().
the font description to use, or %NULL to undo the effect of previous calls to gtk_widget_modify_font().
Modifies style values on the widget. Modifications made using this technique take precedence over style values set via an RC file, however, they will be overriden if a style is explicitely set on the widget using gtk_widget_set_style(). The #GtkRcStyle structure is designed so each field can either be set or unset, so it is possible, using this function, to modify some style values and leave the others unchanged.
Note that modifications made with this function are not cumulative with previous calls to gtk_widget_modify_style() or with such functions as gtk_widget_modify_fg(). If you wish to retain previous values, you must first call gtk_widget_get_modifier_style(), make your modifications to the returned style, then call gtk_widget_modify_style() with that style. On the other hand, if you first call gtk_widget_modify_style(), subsequent calls to such functions gtk_widget_modify_fg() will have a cumulative effect with the initial modifications.
Sets the text color for a widget in a particular state. All other style values are left untouched. The text color is the foreground color used along with the base color (see gtk_widget_modify_base()) for widgets such as #GtkEntry and #GtkTextView. See also gtk_widget_modify_style().
the state for which to set the text color
the color to assign (does not need to be allocated), or %NULL to undo the effect of previous calls to of gtk_widget_modify_text().
Asks the window manager to move
window to the given position. Window managers are free to ignore
this; most window managers ignore requests for initial window
positions (instead using a user-defined placement algorithm) and
honor requests after the window has already been shown.
Note: the position is the position of the gravity-determined reference point for the window. The gravity determines two things: first, the location of the reference point in root window coordinates; and second, which point on the window is positioned at the reference point.
By default the gravity is #GDK_GRAVITY_NORTH_WEST, so the reference
point is simply the x, y supplied to gtk_window_move(). The
top-left corner of the window decorations (aka window frame or
border) will be placed at x, y. Therefore, to position a window
at the top left of the screen, you want to use the default gravity
(which is #GDK_GRAVITY_NORTH_WEST) and move the window to 0,0.
To position a window at the bottom right corner of the screen, you
would set #GDK_GRAVITY_SOUTH_EAST, which means that the reference
point is at x + the window width and y + the window height, and
the bottom-right corner of the window border will be placed at that
reference point. So, to place a window in the bottom right corner
you would first set gravity to south east, then write:
The Extended Window Manager Hints specification at
The gtk_window_get_position() documentation may also be relevant.
X coordinate to move window to
Y coordinate to move window to
Emits a "notify" signal for the property property_name on object.
When possible, eg. when signaling a property change from within the class that registered the property, you should use g_object_notify_by_pspec() instead.
Note that emission of the notify signal may be blocked with g_object_freeze_notify(). In this case, the signal emissions are queued and will be emitted (in reverse order) when g_object_thaw_notify() is called.
the name of a property installed on the class of object.
Emits a "notify" signal for the property specified by pspec on object.
This function omits the property name lookup, hence it is faster than g_object_notify().
One way to avoid using g_object_notify() from within the class that registered the properties, and using g_object_notify_by_pspec() instead, is to store the GParamSpec used with g_object_class_install_property() inside a static array, e.g.:
enum
{
PROP_0,
PROP_FOO,
PROP_LAST
};
static GParamSpec *properties[PROP_LAST];
static void
my_object_class_init (MyObjectClass *klass)
{
properties[PROP_FOO] = g_param_spec_int ("foo", "Foo", "The foo",
0, 100,
50,
G_PARAM_READWRITE);
g_object_class_install_property (gobject_class,
PROP_FOO,
properties[PROP_FOO]);
}
and then notify a change on the "foo" property with:
g_object_notify_by_pspec (self, properties[PROP_FOO]);
the #GParamSpec of a property installed on the class of object.
Parses a standard X Window System geometry string - see the manual page for X (type 'man X') for details on this. gtk_window_parse_geometry() does work on all GTK+ ports including Win32 but is primarily intended for an X environment.
If either a size or a position can be extracted from the geometry string, gtk_window_parse_geometry() returns %TRUE and calls gtk_window_set_default_size() and/or gtk_window_move() to resize/move the window.
If gtk_window_parse_geometry() returns %TRUE, it will also set the #GDK_HINT_USER_POS and/or #GDK_HINT_USER_SIZE hints indicating to the window manager that the size/position of the window was user-specified. This causes most window managers to honor the geometry.
Note that for gtk_window_parse_geometry() to work as expected, it has to be called when the window has its "final" size, i.e. after calling gtk_widget_show_all() on the contents and gtk_window_set_geometry_hints() on the window. |[ #include <gtk/gtk.h>
static void fill_with_content (GtkWidget *vbox) { /* fill with content... */ }
int main (int argc, char *argv[]) { GtkWidget *window, *vbox; GdkGeometry size_hints = { 100, 50, 0, 0, 100, 50, 10, 10, 0.0, 0.0, GDK_GRAVITY_NORTH_WEST };
gtk_init (&argc, &argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL); vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (window), vbox); fill_with_content (vbox); gtk_widget_show_all (vbox);
gtk_window_set_geometry_hints (GTK_WINDOW (window), window, &size_hints, GDK_HINT_MIN_SIZE | GDK_HINT_BASE_SIZE | GDK_HINT_RESIZE_INC);
if (argc > 1) { if (!gtk_window_parse_geometry (GTK_WINDOW (window), argv[1])) fprintf (stderr, "Failed to parse '%s'\n", argv[1]); }
gtk_widget_show_all (window); gtk_main ();
return 0; }
@param geometry geometry string
Obtains the full path to widget. The path is simply the name of a
widget and all its parents in the container hierarchy, separated by
periods. The name of a widget comes from
gtk_widget_get_name(). Paths are used to apply styles to a widget
in gtkrc configuration files. Widget names are the type of the
widget by default (e.g. "GtkButton") or can be set to an
application-specific value with gtk_widget_set_name(). By setting
the name of a widget, you allow users or theme authors to apply
styles to that specific widget in their gtkrc
file. path_reversed_p fills in the path in reverse order,
i.e. starting with widget's name instead of starting with the name
of widget's outermost ancestor.
Presents a window to the user. This may mean raising the window in the stacking order, deiconifying it, moving it to the current desktop, and/or giving it the keyboard focus, possibly dependent on the user's platform, window manager, and preferences.
If window is hidden, this function calls gtk_widget_show()
as well.
This function should be used when the user tries to open a window that's already open. Say for example the preferences dialog is currently open, and the user chooses Preferences from the menu a second time; use gtk_window_present() to move the already-open dialog where the user can see it.
If you are calling this function in response to a user interaction, it is preferable to use gtk_window_present_with_time().
Presents a window to the user in response to a user interaction. If you need to present a window without a timestamp, use gtk_window_present(). See gtk_window_present() for details.
the timestamp of the user interaction (typically a button or key press event) which triggered this call
When a container receives an expose event, it must send synthetic expose events to all children that don't have their own #GdkWindows. This function provides a convenient way of doing this. A container, when it receives an expose event, calls gtk_container_propagate_expose() once for each child, passing in the event the container received.
gtk_container_propagate_expose() takes care of deciding whether an expose event needs to be sent to the child, intersecting the event's area with the child area, and sending the event.
In most cases, a container can simply either simply inherit the #GtkWidget::expose implementation from #GtkContainer, or, do some drawing and then chain to the ::expose implementation from #GtkContainer.
Note that the ::expose-event signal has been replaced by a ::draw signal in GTK+ 3, and consequently, gtk_container_propagate_expose() has been replaced by gtk_container_propagate_draw(). The GTK+ 3 migration guide for hints on how to port from ::expose-event to ::draw.
a child of container
a expose event sent to container
Propagate a key press or release event to the focus widget and
up the focus container chain until a widget handles event.
This is normally called by the default ::key_press_event and
::key_release_event handlers for toplevel windows,
however in some cases it may be useful to call this directly when
overriding the standard key handling for a toplevel window.
This function does the same as gtk_widget_queue_draw().
This function is no longer different from gtk_widget_queue_draw_area(), though it once was. Now it just calls gtk_widget_queue_draw_area(). Originally gtk_widget_queue_clear_area() would force a redraw of the background for %GTK_NO_WINDOW widgets, and gtk_widget_queue_draw_area() would not. Now both functions ensure the background will be redrawn.
x coordinate of upper-left corner of rectangle to redraw
y coordinate of upper-left corner of rectangle to redraw
width of region to draw
height of region to draw
Equivalent to calling gtk_widget_queue_draw_area() for the entire area of a widget.
Invalidates the rectangular area of widget defined by x, y,
width and height by calling gdk_window_invalidate_rect() on the
widget's window and all its child windows. Once the main loop
becomes idle (after the current batch of events has been processed,
roughly), the window will receive expose events for the union of
all regions that have been invalidated.
Normally you would only use this function in widget implementations. You might also use it, or gdk_window_invalidate_rect() directly, to schedule a redraw of a #GtkDrawingArea or some portion thereof.
Frequently you can just call gdk_window_invalidate_rect() or gdk_window_invalidate_region() instead of this function. Those functions will invalidate only a single window, instead of the widget and all its children.
The advantage of adding to the invalidated region compared to simply drawing immediately is efficiency; using an invalid region ensures that you only have to redraw one time.
x coordinate of upper-left corner of rectangle to redraw
y coordinate of upper-left corner of rectangle to redraw
width of region to draw
height of region to draw
This function is only for use in widget implementations. Flags a widget to have its size renegotiated; should be called when a widget for some reason has a new size request. For example, when you change the text in a #GtkLabel, #GtkLabel queues a resize to ensure there's enough space for the new text.
This function works like gtk_widget_queue_resize(), except that the widget is not invalidated.
Creates the GDK (windowing system) resources associated with a
widget. For example, widget->window will be created when a widget
is realized. Normally realization happens implicitly; if you show
a widget and all its parent containers, then the widget will be
realized and mapped automatically.
Realizing a widget requires all
the widget's parent widgets to be realized; calling
gtk_widget_realize() realizes the widget's parents in addition to
widget itself. If a widget is not yet inside a toplevel window
when you realize it, bad things will happen.
This function is primarily used in widget implementations, and isn't very useful otherwise. Many times when you think you might need it, a better approach is to connect to a signal that will be called after the widget is realized automatically, such as GtkWidget::expose-event. Or simply g_signal_connect () to the GtkWidget::realize signal.
Increase the reference count of object, and possibly remove the
[floating][floating-ref] reference, if object has a floating reference.
In other words, if the object is floating, then this call "assumes ownership" of the floating reference, converting it to a normal reference by clearing the floating flag while leaving the reference count unchanged. If the object is not floating, then this call adds a new normal reference increasing the reference count by one.
Since GLib 2.56, the type of object will be propagated to the return type
under the same conditions as for g_object_ref().
Removes widget from container. widget must be inside container.
Note that container will own a reference to widget, and that this
may be the last reference held; so removing a widget from its
container can destroy that widget. If you want to use widget
again, you need to add a reference to it while it's not inside
a container, using g_object_ref(). If you don't want to use widget
again it's usually more efficient to simply destroy it directly
using gtk_widget_destroy() since this will remove it from the
container and help break any circular reference count cycles.
Reverses the effects of gtk_window_add_accel_group().
a #GtkAccelGroup
Removes an accelerator from widget, previously installed with
gtk_widget_add_accelerator().
accel group for this widget
GDK keyval of the accelerator
modifier key combination of the accelerator
Removes a widget from the list of mnemonic labels for this widget. (See gtk_widget_list_mnemonic_labels()). The widget must have previously been added to the list with gtk_widget_add_mnemonic_label().
a #GtkWidget that was previously set as a mnemnic label for widget with gtk_widget_add_mnemonic_label().
A convenience function that uses the theme engine and RC file
settings for widget to look up stock_id and render it to
a pixbuf. stock_id should be a stock icon ID such as
#GTK_STOCK_OPEN or #GTK_STOCK_OK. size should be a size
such as #GTK_ICON_SIZE_MENU. detail should be a string that
identifies the widget or code doing the rendering, so that
theme engines can special-case rendering for that widget or code.
The pixels in the returned #GdkPixbuf are shared with the rest of the application and should not be modified. The pixbuf should be freed after use with g_object_unref().
a stock ID
a stock size. A size of (GtkIconSize)-1 means render at the size of the source and don't scale (if there are multiple source sizes, GTK+ picks one of the available sizes).
render detail to pass to theme engine
Reset the styles of widget and all descendents, so when
they are looked up again, they get the correct values
for the currently loaded RC file settings.
This function is not useful for applications.
Recursively resets the shape on this widget and its descendants.
Hides window, then reshows it, resetting the
default size and position of the window. Used
by GUI builders only.
Resizes the window as if the user had done so, obeying geometry constraints. The default geometry constraint is that windows may not be smaller than their size request; to override this constraint, call gtk_widget_set_size_request() to set the window's request to a smaller value.
If gtk_window_resize() is called before showing a window for the first time, it overrides any default size set with gtk_window_set_default_size().
Windows may not be resized smaller than 1 by 1 pixels.
width in pixels to resize the window to
height in pixels to resize the window to
Emits the #GtkDialog::response signal with the given response ID. Used to indicate that the user has responded to the dialog in some way; typically either you or gtk_dialog_run() will be monitoring the ::response signal and take appropriate action.
response ID
Blocks in a recursive main loop until the dialog either emits the
#GtkDialog::response signal, or is destroyed. If the dialog is
destroyed during the call to gtk_dialog_run(), gtk_dialog_run() returns
#GTK_RESPONSE_NONE. Otherwise, it returns the response ID from the
::response signal emission.
Before entering the recursive main loop, gtk_dialog_run() calls gtk_widget_show() on the dialog for you. Note that you still need to show any children of the dialog yourself.
During gtk_dialog_run(), the default behavior of #GtkWidget::delete-event is disabled; if the dialog receives ::delete_event, it will not be destroyed as windows usually are, and gtk_dialog_run() will return #GTK_RESPONSE_DELETE_EVENT. Also, during gtk_dialog_run() the dialog will be modal. You can force gtk_dialog_run() to return at any time by calling gtk_dialog_response() to emit the ::response signal. Destroying the dialog during gtk_dialog_run() is a very bad idea, because your post-run code won't know whether the dialog was destroyed or not.
After gtk_dialog_run() returns, you are responsible for hiding or destroying the dialog if you wish to do so.
Typical usage of this function might be: |[ gint result = gtk_dialog_run (GTK_DIALOG (dialog)); switch (result) { case GTK_RESPONSE_ACCEPT: do_application_specific_something (); break; default: do_nothing_since_dialog_was_cancelled (); break; } gtk_widget_destroy (dialog);
Note that even though the recursive main loop gives the effect of a
modal dialog (it prevents the user from interacting with other
windows in the same window group while the dialog is run), callbacks
such as timeouts, IO channel watches, DND drops, etc, <emphasis>will</emphasis>
be triggered during a gtk_dialog_run() call.
Releases all references to other objects. This can be used to break reference cycles.
This function should only be called from object system implementations.
Very rarely-used function. This function is used to emit an expose event signals on a widget. This function is not normally used directly. The only time it is used is when propagating an expose event to a child %NO_WINDOW widget, and that is normally done using gtk_container_propagate_expose().
If you want to force an area of a window to be redrawn, use gdk_window_invalidate_rect() or gdk_window_invalidate_region(). To cause the redraw to be done immediately, follow that call with a call to gdk_window_process_updates().
Sends the focus change event to widget
This function is not meant to be used by applications. The only time it should be used is when it is necessary for a #GtkWidget to assign focus to a widget that is semantically owned by the first widget even though it's not a direct child - for instance, a search entry in a floating window similar to the quick search in #GtkTreeView.
An example of its usage is:
|[ GdkEvent *fevent = gdk_event_new (GDK_FOCUS_CHANGE);
fevent->focus_change.type = GDK_FOCUS_CHANGE; fevent->focus_change.in = TRUE; fevent->focus_change.window = gtk_widget_get_window (widget); if (fevent->focus_change.window != NULL) g_object_ref (fevent->focus_change.window);
gtk_widget_send_focus_change (widget, fevent);
gdk_event_free (event);
@param event a #GdkEvent of type GDK_FOCUS_CHANGE
Given an accelerator group, accel_group, and an accelerator path,
accel_path, sets up an accelerator in accel_group so whenever the
key binding that is defined for accel_path is pressed, widget
will be activated. This removes any accelerators (for any
accelerator group) installed by previous calls to
gtk_widget_set_accel_path(). Associating accelerators with
paths allows them to be modified by the user and the modifications
to be saved for future use. (See gtk_accel_map_save().)
This function is a low level function that would most likely be used by a menu creation system like #GtkUIManager. If you use #GtkUIManager, setting up accelerator paths will be done automatically.
Even when you you aren't using #GtkUIManager, if you only want to set up accelerators on menu items gtk_menu_item_set_accel_path() provides a somewhat more convenient interface.
Note that accel_path string will be stored in a #GQuark. Therefore, if you
pass a static string, you can save some memory by interning it first with
g_intern_static_string().
path used to look up the accelerator
a #GtkAccelGroup.
Windows may set a hint asking the desktop environment not to receive the input focus. This function sets this hint.
%TRUE to let this window receive input focus
Sets an alternative button order. If the
#GtkSettings:gtk-alternative-button-order setting is set to %TRUE,
the dialog buttons are reordered according to the order of the
response ids in new_order.
See gtk_dialog_set_alternative_button_order() for more information.
This function is for use by language bindings.
an array of response ids of dialog's buttons
Sets whether the application intends to draw on the widget in an #GtkWidget::expose-event handler.
This is a hint to the widget and does not affect the behavior of the GTK+ core; many widgets ignore this flag entirely. For widgets that do pay attention to the flag, such as #GtkEventBox and #GtkWindow, the effect is to suppress default themed drawing of the widget's background. (Children of the widget will still be drawn.) The application is then entirely responsible for drawing the widget background.
Note that the background is still drawn when the widget is mapped. If this is not suitable (e.g. because you want to make a transparent window using an RGBA visual), you can work around this by doing: |[ gtk_widget_realize (window); gdk_window_set_back_pixmap (window->window, NULL, FALSE); gtk_widget_show (window);
@param app_paintable %TRUE if the application will paint on the widget
Sets the border width of the container.
The border width of a container is the amount of space to leave around the outside of the container. The only exception to this is #GtkWindow; because toplevel windows can't leave space outside, they leave the space inside. The border is added on all sides of the container. To add space to only one side, one approach is to create a #GtkAlignment widget, call gtk_widget_set_size_request() to give it a size, and place it on the side of the container as a spacer.
amount of blank space to leave
Specifies whether widget can be a default widget. See
gtk_widget_grab_default() for details about the meaning of
"default".
whether or not widget can be a default widget.
Specifies whether widget can own the input focus. See
gtk_widget_grab_focus() for actually setting the input focus on a
widget.
whether or not widget can own the input focus.
Sets whether widget should be mapped along with its when its parent
is mapped and widget has been shown with gtk_widget_show().
The child visibility can be set for widget before it is added to a container with gtk_widget_set_parent(), to avoid mapping children unnecessary before immediately unmapping them. However it will be reset to its default state of %TRUE when the widget is removed from a container.
Note that changing the child visibility of a widget does not queue a resize on the widget. Most of the time, the size of a widget is computed from all visible children, whether or not they are mapped. If this is not the case, the container can queue a resize itself.
This function is only useful for container implementations and never should be called by an application.
if %TRUE, widget should be mapped along with its parent.
Sets a widgets composite name. The widget must be a composite child of its parent; see gtk_widget_push_composite_child().
the name to set
Each object carries around a table of associations from strings to pointers. This function lets you set an association.
If the object already had an association with that name, the old association will be destroyed.
Internally, the key is converted to a #GQuark using g_quark_from_string().
This means a copy of key is kept permanently (even after object has been
finalized) — so it is recommended to only use a small, bounded set of values
for key in your program, to avoid the #GQuark storage growing unbounded.
Each object carries around a table of associations from strings to pointers. This function lets you set an association.
If the object already had an association with that name, the old association will be destroyed.
Internally, the key is converted to a #GQuark using g_quark_from_string().
This means a copy of key is kept permanently (even after object has been
finalized) — so it is recommended to only use a small, bounded set of values
for key in your program, to avoid the #GQuark storage growing unbounded.
name of the key
data to associate with that key
By default, windows are decorated with a title bar, resize controls, etc. Some window managers allow GTK+ to disable these decorations, creating a borderless window. If you set the decorated property to %FALSE using this function, GTK+ will do its best to convince the window manager not to decorate the window. Depending on the system, this function may not have any effect when called on a window that is already visible, so you should call it before calling gtk_window_show().
On Windows, this function always works, since there's no window manager policy involved.
%TRUE to decorate the window
The default widget is the widget that's activated when the user presses Enter in a dialog (for example). This function sets or unsets the default widget for a #GtkWindow about. When setting (rather than unsetting) the default widget it's generally easier to call gtk_widget_grab_focus() on the widget. Before making a widget the default widget, you must set the #GTK_CAN_DEFAULT flag on the widget you'd like to make the default using GTK_WIDGET_SET_FLAGS().
widget to be the default, or %NULL to unset the default widget for the toplevel.
Sets the last widget in the dialog's action area with the given response_id
as the default widget for the dialog. Pressing "Enter" normally activates
the default widget.
a response ID
Sets the default size of a window. If the window's "natural" size (its size request) is larger than the default, the default will be ignored. More generally, if the default size does not obey the geometry hints for the window (gtk_window_set_geometry_hints() can be used to set these explicitly), the default size will be clamped to the nearest permitted size.
Unlike gtk_widget_set_size_request(), which sets a size request for a widget and thus would keep users from shrinking the window, this function only sets the initial size, just as if the user had resized the window themselves. Users can still shrink the window again as they normally would. Setting a default size of -1 means to use the "natural" default size (the size request of the window).
For more control over a window's initial size and how resizing works, investigate gtk_window_set_geometry_hints().
For some uses, gtk_window_resize() is a more appropriate function. gtk_window_resize() changes the current size of the window, rather than the size to be used on initial display. gtk_window_resize() always affects the window itself, not the geometry widget.
The default size of a window only affects the first time a window is shown; if a window is hidden and re-shown, it will remember the size it had prior to hiding, rather than using the default size.
Windows can't actually be 0x0 in size, they must be at least 1x1, but
passing 0 for width and height is OK, resulting in a 1x1 default size.
width in pixels, or -1 to unset the default width
height in pixels, or -1 to unset the default height
By default, windows have a close button in the window frame. Some
window managers allow GTK+ to disable this button. If you set the deletable property to %FALSE using this function, GTK+ will do its best to convince the window manager not to show a close button. Depending on the system, this function may not have any effect when called on a window that is already visible, so you should call it before calling gtk_window_show().On Windows, this function always works, since there's no window manager policy involved.
%TRUE to decorate the window as deletable
If setting is %TRUE, then destroying the transient parent of window
will also destroy window itself. This is useful for dialogs that
shouldn't persist beyond the lifetime of the main window they're
associated with, for example.
whether to destroy window with its transient parent
Sets the reading direction on a particular widget. This direction controls the primary direction for widgets containing text, and also the direction in which the children of a container are packed. The ability to set the direction is present in order so that correct localization into languages with right-to-left reading directions can be done. Generally, applications will let the default reading direction present, except for containers where the containers are arranged in an order that is explicitely visual rather than logical (such as buttons for text justification).
If the direction is set to %GTK_TEXT_DIR_NONE, then the value set by gtk_widget_set_default_direction() will be used.
the new direction
Widgets are double buffered by default; you can use this function to turn off the buffering. "Double buffered" simply means that gdk_window_begin_paint_region() and gdk_window_end_paint() are called automatically around expose events sent to the widget. gdk_window_begin_paint() diverts all drawing to a widget's window to an offscreen buffer, and gdk_window_end_paint() draws the buffer to the screen. The result is that users see the window update in one smooth step, and don't see individual graphics primitives being rendered.
In very simple terms, double buffered widgets don't flicker, so you would only use this function to turn off double buffering if you had special needs and really knew what you were doing.
Note: if you turn off double-buffering, you have to handle expose events, since even the clearing to the background color or pixmap will not happen automatically (as it is done in gdk_window_begin_paint()).
%TRUE to double-buffer a widget
Sets the event mask (see #GdkEventMask) for a widget. The event mask determines which events a widget will receive. Keep in mind that different widgets have different default event masks, and by changing the event mask you may disrupt a widget's functionality, so be careful. This function must be called while a widget is unrealized. Consider gtk_widget_add_events() for widgets that are already realized, or if you want to preserve the existing event mask. This function can't be used with #GTK_NO_WINDOW widgets; to get events on those widgets, place them inside a #GtkEventBox and receive events on the event box.
event mask
Sets the extension events mask to mode. See #GdkExtensionMode
and gdk_input_set_extension_events().
bitfield of extension events to receive
If focus is not the current focus widget, and is focusable, sets
it as the focus widget for the window. If focus is %NULL, unsets
the focus widget for this window. To set the focus to a particular
widget in the toplevel, it is usually more convenient to use
gtk_widget_grab_focus() instead of this function.
widget to be the new focus widget, or %NULL to unset any focus widget for the toplevel window.
Sets a focus chain, overriding the one computed automatically by GTK+.
In principle each widget in the chain should be a descendant of the container, but this is not enforced by this method, since it's allowed to set the focus chain before you pack the widgets, or have a widget in the chain that isn't always packed. The necessary checks are done when the focus chain is actually traversed.
Sets, or unsets if child is %NULL, the focused child of container.
This function emits the GtkContainer::set_focus_child signal of
container. Implementations of #GtkContainer can override the
default behaviour by overriding the class closure of this signal.
This is function is mostly meant to be used by widgets. Applications can use gtk_widget_grab_focus() to manualy set the focus to a specific widget.
Hooks up an adjustment to focus handling in a container, so when a child of the container is focused, the adjustment is scrolled to show that widget. This function sets the horizontal alignment. See gtk_scrolled_window_get_hadjustment() for a typical way of obtaining the adjustment and gtk_container_set_focus_vadjustment() for setting the vertical adjustment.
The adjustments have to be in pixel units and in the same coordinate system as the allocation for immediate children of the container.
an adjustment which should be adjusted when the focus is moved among the descendents of container
Windows may set a hint asking the desktop environment not to receive the input focus when the window is mapped. This function sets this hint.
%TRUE to let this window receive input focus on map
Hooks up an adjustment to focus handling in a container, so when a child of the container is focused, the adjustment is scrolled to show that widget. This function sets the vertical alignment. See gtk_scrolled_window_get_vadjustment() for a typical way of obtaining the adjustment and gtk_container_set_focus_hadjustment() for setting the horizontal adjustment.
The adjustments have to be in pixel units and in the same coordinate system as the allocation for immediate children of the container.
an adjustment which should be adjusted when the focus is moved among the descendents of container
(Note: this is a special-purpose function intended for the framebuffer port; see gtk_window_set_has_frame(). It will have no effect on the window border drawn by the window manager, which is the normal case when using the X Window system.)
For windows with frames (see gtk_window_set_has_frame()) this function can be used to change the size of the frame border.
The width of the left border
The height of the top border
The width of the right border
The height of the bottom border
This function sets up hints about how a window can be resized by the user. You can set a minimum and maximum size; allowed resize increments (e.g. for xterm, you can only resize by the size of a character); aspect ratios; and more. See the #GdkGeometry struct.
widget the geometry hints will be applied to
struct containing geometry information
mask indicating which struct fields should be paid attention to
(Note: this is a special-purpose function for the framebuffer port, that causes GTK+ to draw its own window border. For most applications, you want gtk_window_set_decorated() instead, which tells the window manager whether to draw the window border.)
If this function is called on a window with setting of %TRUE, before
it is realized or showed, it will have a "frame" window around
window->window, accessible in window->frame. Using the signal
frame_event you can receive all events targeted at the frame.
This function is used by the linux-fb port to implement managed windows, but it could conceivably be used by X-programs that want to do their own window decorations.
a boolean
Sets whether the dialog has a separator above the buttons.
%TRUE to have a separator
Sets the has-tooltip property on widget to has_tooltip. See
GtkWidget:has-tooltip for more information.
whether or not widget has a tooltip.
Specifies whether widget has a #GdkWindow of its own. Note that
all realized widgets have a non-%NULL "window" pointer
(gtk_widget_get_window() never returns a %NULL window when a widget
is realized), but for many of them it's actually the #GdkWindow of
one of its parent widgets. Widgets that do not create a %window for
themselves in GtkWidget::realize() must announce this by
calling this function with has_window = %FALSE.
This function should only be called by widget implementations, and they should call it in their init() function.
whether or not widget has a window.
Sets up the icon representing a #GtkWindow. This icon is used when the window is minimized (also known as iconified). Some window managers or desktop environments may also place it in the window frame, or display it in other contexts.
The icon should be provided in whatever size it was naturally drawn; that is, don't scale the image before passing it to GTK+. Scaling is postponed until the last minute, when the desired final size is known, to allow best quality.
If you have your icon hand-drawn in multiple sizes, use gtk_window_set_icon_list(). Then the best size will be used.
This function is equivalent to calling gtk_window_set_icon_list() with a 1-element list.
See also gtk_window_set_default_icon_list() to set the icon for all windows in your application in one go.
icon image, or %NULL
Sets the icon for window.
Warns on failure if err is %NULL.
This function is equivalent to calling gtk_window_set_icon()
with a pixbuf created by loading the image from filename.
location of icon file
Sets the icon for the window from a named themed icon. See the docs for #GtkIconTheme for more details.
Note that this has nothing to do with the WM_ICON_NAME property which is mentioned in the ICCCM.
the name of the themed icon
Asks to keep window above, so that it stays on top. Note that
you shouldn't assume the window is definitely above afterward,
because other entities (e.g. the user or window manager) could not keep it above,
and not all window managers support keeping windows above. But
normally the window will end kept above. Just don't write code
that crashes if not.
It's permitted to call this function before showing a window, in which case the window will be kept above when it appears onscreen initially.
You can track the above state via the "window-state-event" signal on #GtkWidget.
Note that, according to the
whether to keep window above other windows
Asks to keep window below, so that it stays in bottom. Note that
you shouldn't assume the window is definitely below afterward,
because other entities (e.g. the user or window manager) could not keep it below,
and not all window managers support putting windows below. But
normally the window will be kept below. Just don't write code
that crashes if not.
It's permitted to call this function before showing a window, in which case the window will be kept below when it appears onscreen initially.
You can track the below state via the "window-state-event" signal on #GtkWidget.
Note that, according to the
whether to keep window below other windows
Marks the widget as being realized.
This function should only ever be called in a derived widget's "map" or "unmap" implementation.
%TRUE to mark the widget as mapped
Sets the mnemonic modifier for this window.
the modifier mask used to activate mnemonics on this window.
Sets the #GtkWindow:mnemonics-visible property.
the new value
Sets a window modal or non-modal. Modal windows prevent interaction with other windows in the same application. To keep modal dialogs on top of main application windows, use gtk_window_set_transient_for() to make the dialog transient for the parent; most window managers will then disallow lowering the dialog below the parent.
whether the window is modal
Widgets can be named, which allows you to refer to them from a gtkrc file. You can apply a style to widgets with a particular name in the gtkrc file. See the documentation for gtkrc files (on the same page as the docs for #GtkRcStyle).
Note that widget names are separated by periods in paths (see gtk_widget_path()), so names with embedded periods may cause confusion.
name for the widget
Sets the #GtkWidget:no-show-all property, which determines whether calls to gtk_widget_show_all() and gtk_widget_hide_all() will affect this widget.
This is mostly for use in constructing widget hierarchies with externally controlled visibility, see #GtkUIManager.
the new value for the "no-show-all" property
Request the windowing system to make window partially transparent,
with opacity 0 being fully transparent and 1 fully opaque. (Values
of the opacity parameter are clamped to the [0,1] range.) On X11
this has any effect only on X screens with a compositing manager
running. See gtk_widget_is_composited(). On Windows it should work
always.
Note that setting a window's opacity after the window has been shown causes it to flicker once on Windows.
desired opacity, between 0 and 1
This function is useful only when implementing subclasses of
#GtkContainer.
Sets the container as the parent of widget, and takes care of
some details such as updating the state and style of the child
to reflect its new location. The opposite function is
gtk_widget_unparent().
Sets a position constraint for this window. If the old or new constraint is %GTK_WIN_POS_CENTER_ALWAYS, this will also cause the window to be repositioned to satisfy the new constraint.
a position constraint.
Sets a property on an object.
the name of the property to set
the value
Marks the widget as being realized.
This function should only ever be called in a derived widget's "realize" or "unrealize" implementation.
%TRUE to mark the widget as realized
Sets the reallocate_redraws flag of the container to the given value.
Containers requesting reallocation redraws get automatically redrawn if any of their children changed allocation.
the new value for the container's reallocate_redraws flag
Specifies whether widget will be treated as the default widget
within its toplevel when it has the focus, even if another widget
is the default.
See gtk_widget_grab_default() for details about the meaning of "default".
whether or not widget can be a default widget.
Sets whether the entire widget is queued for drawing when its size allocation changes. By default, this setting is %TRUE and the entire widget is redrawn on every size change. If your widget leaves the upper left unchanged when made bigger, turning this setting off will improve performance.
Note that for %NO_WINDOW widgets setting this flag to %FALSE turns
off all allocation on resizing: the widget will not even redraw if
its position changes; this is to allow containers that don't draw
anything to avoid excess invalidations. If you set this flag on a
%NO_WINDOW widget that widget->window,
you are responsible for invalidating both the old and new allocation
of the widget when the widget is moved and responsible for invalidating
regions newly when the widget increases size.
if %TRUE, the entire widget will be redrawn when it is allocated to a new size. Otherwise, only the new portion of the widget will be redrawn.
Sets whether the user can resize a window. Windows are user resizable by default.
%TRUE if the user can resize this window
Sets the resize mode for the container.
The resize mode of a container determines whether a resize request will be passed to the container's parent, queued for later execution or executed immediately.
the new resize mode
Calls setting)response_id.
A convenient way to sensitize/desensitize dialog buttons.
a response ID
%TRUE for sensitive
This function is only useful on X11, not with other GTK+ targets.
In combination with the window title, the window role allows a
window manager to identify "the same" window when an application is restarted. So for example you might set the "toolbox" role on your app's toolbox window, so that when the user restarts their session, the window manager can put the toolbox back in the same place.If a window already has a unique title, you don't need to set the role, since the WM can use the title to identify the window when restoring the session.
unique identifier for the window to be used when restoring a session
For widgets that support scrolling, sets the scroll adjustments and returns %TRUE. For widgets that don't support scrolling, does nothing and returns %FALSE. Widgets that don't support scrolling can be scrolled by placing them in a #GtkViewport, which does support scrolling.
an adjustment for horizontal scrolling, or %NULL
an adjustment for vertical scrolling, or %NULL
Sets the sensitivity of a widget. A widget is sensitive if the user can interact with it. Insensitive widgets are "grayed out" and the user can't interact with them. Insensitive widgets are known as "inactive", "disabled", or "ghosted" in some other toolkits.
%TRUE to make the widget sensitive
Sets the minimum size of a widget; that is, the widget's size
request will be width by height. You can use this function to
force a widget to be either larger or smaller than it normally
would be.
In most cases, gtk_window_set_default_size() is a better choice for toplevel windows than this function; setting the default size will still allow users to shrink the window. Setting the size request will force them to leave the window at least as large as the size request. When dealing with window sizes, gtk_window_set_geometry_hints() can be a useful function as well.
Note the inherent danger of setting any fixed size - themes, translations into other languages, different fonts, and user action can all change the appropriate size for a given widget. So, it's basically impossible to hardcode a size that will always be correct.
The size request of a widget is the smallest size a widget can accept while still functioning well and drawing itself correctly. However in some strange cases a widget may be allocated less than its requested size, and in many cases a widget may be allocated more space than it requested.
If the size request in a given direction is -1 (unset), then the "natural" size request of the widget will be used instead.
Widgets can't actually be allocated a size less than 1 by 1, but you can pass 0,0 to this function to mean "as small as possible."
width widget should request, or -1 to unset
height widget should request, or -1 to unset
Windows may set a hint asking the desktop environment not to display the window in the pager. This function sets this hint. (A "pager" is any desktop navigation tool such as a workspace switcher that displays a thumbnail representation of the windows on the screen.)
%TRUE to keep this window from appearing in the pager
Windows may set a hint asking the desktop environment not to display the window in the task bar. This function sets this hint.
%TRUE to keep this window from appearing in the task bar
Startup notification identifiers are used by desktop environment to track application startup, to provide user feedback and other features. This function changes the corresponding property on the underlying GdkWindow. Normally, startup identifier is managed automatically and you should only use this function in special cases like transferring focus from other processes. You should use this function before calling gtk_window_present() or any equivalent function generating a window map event.
This function is only useful on X11, not with other GTK+ targets.
a string with startup-notification identifier
Sets the #GtkStyle for a widget (widget->style). You probably don't
want to use this function; it interacts badly with themes, because
themes work by replacing the #GtkStyle. Instead, use
gtk_widget_modify_style().
a #GtkStyle, or %NULL to remove the effect of a previous gtk_widget_set_style() and go back to the default style
Sets the title of the #GtkWindow. The title of a window will be displayed in its title bar; on the X Window System, the title bar is rendered by the window manager, so exactly how the title appears to users may vary according to a user's exact configuration. The title should help a user distinguish this window from other windows they may have open. A good title might include the application name and current document filename, for example.
title of the window
Sets markup as the contents of the tooltip, which is marked up with
the Pango text markup language.
This function will take care of setting GtkWidget:has-tooltip to %TRUE and of the default handler for the GtkWidget::query-tooltip signal.
See also the GtkWidget:tooltip-markup property and gtk_tooltip_set_markup().
the contents of the tooltip for widget, or %NULL
Sets text as the contents of the tooltip. This function will take
care of setting GtkWidget:has-tooltip to %TRUE and of the default
handler for the GtkWidget::query-tooltip signal.
See also the GtkWidget:tooltip-text property and gtk_tooltip_set_text().
the contents of the tooltip for widget
Replaces the default, usually yellow, window used for displaying
tooltips with custom_window. GTK+ will take care of showing and
hiding custom_window at the right moment, to behave likewise as
the default tooltip window. If custom_window is %NULL, the default
tooltip window will be used.
If the custom window should have the default theming it needs to have the name "gtk-tooltip", see gtk_widget_set_name().
Dialog windows should be set transient for the main application window they were spawned from. This allows window managers to e.g. keep the dialog on top of the main window, or center the dialog over the main window. gtk_dialog_new_with_buttons() and other convenience functions in GTK+ will sometimes call gtk_window_set_transient_for() on your behalf.
Passing %NULL for parent unsets the current transient window.
On Windows, this function puts the child window on top of the parent, much as the window manager would have done on X.
By setting the type hint for the window, you allow the window manager to decorate and handle the window in a way which is suitable to the function of the window in your application.
This function should be called before the window becomes visible.
gtk_dialog_new_with_buttons() and other convenience functions in GTK+ will sometimes call gtk_window_set_type_hint() on your behalf.
the window type
Sets the position of a widget. The funny "u" in the name comes from the "user position" hint specified by the X Window System, and exists for legacy reasons. This function doesn't work if a widget is inside a container; it's only really useful on #GtkWindow.
Don't use this function to center dialogs over the main application window; most window managers will do the centering on your behalf if you call gtk_window_set_transient_for(), and it's really not possible to get the centering to work correctly in all cases from application code. But if you insist, use gtk_window_set_position() to set #GTK_WIN_POS_CENTER_ON_PARENT, don't do the centering manually.
Note that although x and y can be individually unset, the position
is not honoured unless both x and y are set.
x position; -1 to unset x; -2 to leave x unchanged
y position; -1 to unset y; -2 to leave y unchanged
Windows may set a hint asking the desktop environment to draw the users attention to the window. This function sets this hint.
%TRUE to mark this window as urgent
Sets the minimum size of a widget; that is, the widget's size
request will be width by height. You can use this function to
force a widget to be either larger or smaller than it is. The
strange "usize" name dates from the early days of GTK+, and derives
from X Window System terminology. In many cases,
gtk_window_set_default_size() is a better choice for toplevel
windows than this function; setting the default size will still
allow users to shrink the window. Setting the usize will force them
to leave the window at least as large as the usize. When dealing
with window sizes, gtk_window_set_geometry_hints() can be a useful
function as well.
Note the inherent danger of setting any fixed size - themes, translations into other languages, different fonts, and user action can all change the appropriate size for a given widget. So, it's basically impossible to hardcode a size that will always be correct.
minimum width, or -1 to unset
minimum height, or -1 to unset
Sets the visibility state of widget. Note that setting this to
%TRUE doesn't mean the widget is actually viewable, see
gtk_widget_get_visible().
This function simply calls gtk_widget_show() or gtk_widget_hide() but is nicer to use when the visibility of the widget depends on some condition.
whether the widget should be shown or not
Sets a widget's window. This function should only be used in a widget's GtkWidget::realize() implementation. The %window passed is usually either new window created with gdk_window_new(), or the window of its parent widget as returned by gtk_widget_get_parent_window().
Widgets must indicate whether they will create their own #GdkWindow by calling gtk_widget_set_has_window(). This is usually done in the widget's init() function.
Don't use this function. It sets the X Window System "class" and "name" hints for a window. According to the ICCCM, you should always set these to the same value for all windows in an application, and GTK+ sets them to that value by default, so calling this function is sort of pointless. However, you may want to call gtk_window_set_role() on each window in your application, for the benefit of the session manager. Setting the role allows the window manager to restore window positions when loading a saved session.
window name hint
window class hint
Sets a shape for this widget's GDK window. This allows for transparent windows etc., see gdk_window_shape_combine_mask() for more information.
shape to be added, or %NULL to remove an existing shape
X position of shape mask with respect to window
Y position of shape mask with respect to window
Flags a widget to be displayed. Any widget that isn't shown will not appear on the screen. If you want to show all the widgets in a container, it's easier to call gtk_widget_show_all() on the container, instead of individually showing the widgets.
Remember that you have to show the containers containing a widget, in addition to the widget itself, before it will appear onscreen.
When a toplevel container is shown, it is immediately realized and mapped; other shown widgets are realized and mapped when their toplevel container is realized and mapped.
Recursively shows a widget, and any child widgets (if the widget is a container).
Shows a widget. If the widget is an unmapped toplevel widget (i.e. a #GtkWindow that has not yet been shown), enter the main loop and wait for the window to actually be mapped. Be careful; because the main loop is running, anything can happen during this function.
This function is typically used when implementing a #GtkContainer subclass. Obtains the preferred size of a widget. The container uses this information to arrange its child widgets and decide what size allocations to give them with gtk_widget_size_allocate().
You can also call this function from an application, with some caveats. Most notably, getting a size request requires the widget to be associated with a screen, because font information may be needed. Multihead-aware applications should keep this in mind.
Also remember that the size request is not necessarily the size a widget will actually be allocated.
See also gtk_widget_get_child_requisition().
a #GtkRequisition to be filled in
Remove a specified datum from the object's data associations, without invoking the association's destroy handler.
name of the key
This function gets back user data pointers stored via
g_object_set_qdata() and removes the data from object
without invoking its destroy() function (if any was
set).
Usually, calling this function is only required to update
user data pointers with a destroy notifier, for example:
void
object_add_to_user_list (GObject *object,
const gchar *new_string)
{
// the quark, naming the object data
GQuark quark_string_list = g_quark_from_static_string ("my-string-list");
// retrieve the old string list
GList *list = g_object_steal_qdata (object, quark_string_list);
// prepend new string
list = g_list_prepend (list, g_strdup (new_string));
// this changed 'list', so we need to set it again
g_object_set_qdata_full (object, quark_string_list, list, free_string_list);
}
static void
free_string_list (gpointer data)
{
GList *node, *list = data;
for (node = list; node; node = node->next)
g_free (node->data);
g_list_free (list);
}
Using g_object_get_qdata() in the above example, instead of g_object_steal_qdata() would have left the destroy function set, and thus the partial string list would have been freed upon g_object_set_qdata_full().
A #GQuark, naming the user data pointer
Asks to stick window, which means that it will appear on all user
desktops. Note that you shouldn't assume the window is definitely
stuck afterward, because other entities (e.g. the user or window manager) could unstick it
again, and some window managers do not support sticking
windows. But normally the window will end up stuck. Just don't
write code that crashes if not.
It's permitted to call this function before showing a window.
You can track stickiness via the "window-state-event" signal on #GtkWidget.
This function attaches the widget's #GtkStyle to the widget's #GdkWindow. It is a replacement for
and should only ever be called in a derived widget's "realize" implementation which does not chain up to its parent class' "realize" implementation, because one of the parent classes (finally #GtkWidget) would attach the style itself.
Gets the value of a style property of widget.
the name of a style property
location to return the property value
Reverts the effect of a previous call to gtk_widget_freeze_child_notify().
This causes all queued #GtkWidget::child-notify signals on widget to be
emitted.
Reverts the effect of a previous call to
g_object_freeze_notify(). The freeze count is decreased on object
and when it reaches zero, queued "notify" signals are emitted.
Duplicate notifications for each property are squashed so that at most one #GObject::notify signal is emitted for each property, in the reverse order in which they have been queued.
It is an error to call this function when the freeze count is zero.
Translate coordinates relative to src_widget's allocation to coordinates
relative to dest_widget's allocations. In order to perform this
operation, both widgets must be realized, and must share a common
toplevel.
a #GtkWidget
X position relative to src_widget
Y position relative to src_widget
Triggers a tooltip query on the display where the toplevel of widget
is located. See gtk_tooltip_trigger_tooltip_query() for more
information.
Asks to toggle off the fullscreen state for window. Note that you
shouldn't assume the window is definitely not full screen
afterward, because other entities (e.g. the user or window manager) could fullscreen it
again, and not all window managers honor requests to unfullscreen
windows. But normally the window will end up restored to its normal
state. Just don't write code that crashes if not.
You can track the fullscreen state via the "window-state-event" signal on #GtkWidget.
This function is only for use in widget implementations. Causes a widget to be unmapped if it's currently mapped.
Asks to unmaximize window. Note that you shouldn't assume the
window is definitely unmaximized afterward, because other entities
(e.g. the user or window
manager) could maximize it again, and not all window
managers honor requests to unmaximize. But normally the window will
end up unmaximized. Just don't write code that crashes if not.
You can track maximization via the "window-state-event" signal on #GtkWidget.
This function is only for use in widget implementations. Should be called by implementations of the remove method on #GtkContainer, to dissociate a child from the container.
This function is only useful in widget implementations.
Causes a widget to be unrealized (frees all GDK resources
associated with the widget, such as widget->window).
Inverse of gtk_widget_ref(). Equivalent to g_object_unref().
Removes a focus chain explicitly set with gtk_container_set_focus_chain().
Asks to unstick window, which means that it will appear on only
one of the user's desktops. Note that you shouldn't assume the
window is definitely unstuck afterward, because other entities
(e.g. the user or window
manager) could stick it again. But normally the window will
end up stuck. Just don't write code that crashes if not.
You can track stickiness via the "window-state-event" signal on #GtkWidget.
Adds widget to container. Typically used for simple containers
such as #GtkWindow, #GtkFrame, or #GtkButton; for more complicated
layout containers such as #GtkBox or #GtkTable, this function will
pick default packing parameters that may not be correct. So
consider functions such as gtk_box_pack_start() and
gtk_table_attach() as an alternative to gtk_container_add() in
those cases. A widget may be added to only one container at a time;
you can't place the same widget inside two different containers.
Determines whether an accelerator that activates the signal
identified by signal_id can currently be activated.
This is done by emitting the #GtkWidget::can-activate-accel
signal on widget; if the signal isn't overridden by a
handler or in a derived widget, then the default check is
that the widget must be sensitive, and the widget and all
its ancestors mapped.
the ID of a signal installed on widget
Emits a #GtkWidget::child-notify signal for the
child property `child_property` on `widget`.This is the analogue of g_object_notify() for child properties.
Returns the type of the children supported by the container.
Note that this may return %G_TYPE_NONE to indicate that no more children can be added, e.g. for a #GtkPaned which already has two children.
This is similar to gtk_buildable_parser_finished() but is
called once for each custom tag handled by the buildable.
a #GtkBuilder
child object or %NULL for non-child tags
the name of the tag
user data created in custom_tag_start
This is called at the end of each custom element handled by the buildable.
#GtkBuilder used to construct this object
child object or %NULL for non-child tags
name of tag
user data that will be passed in to parser functions
This is called for each unknown element under <child>.
a #GtkBuilder used to construct this object
child object or %NULL for non-child tags
name of tag
Rarely-used function. This function is used to emit the event signals on a widget (those signals should never be emitted without using this function to do so). If you want to synthesize an event though, don't use this function; instead, use gtk_main_do_event() so the event will behave as if it were in the event queue. Don't synthesize expose events; instead, use gdk_window_invalidate_rect() to invalidate a region of the window.
Returns the accessible object that describes the widget to an assistive technology.
If no accessibility library is loaded (i.e. no ATK implementation library is
loaded via
The documentation of the
Gets the name of the buildable object.
#GtkBuilder sets the name based on the the
GtkBuilder UI definition used to construct the `buildable`.Causes widget to have the keyboard focus for the #GtkWindow it's
inside. widget must be a focusable widget, such as a #GtkEntry;
something like #GtkFrame won't work.
More precisely, it must have the %GTK_CAN_FOCUS flag set. Use gtk_widget_set_can_focus() to modify that flag.
The widget also needs to be realized and mapped. This is indicated by the related signals. Grabbing the focus immediately after creating the widget will likely fail and cause critical warnings.
Reverses the effects of gtk_widget_show(), causing the widget to be hidden (invisible to the user).
Recursively hides a widget and any child widgets.
This function is only for use in widget implementations. Causes a widget to be mapped if it isn't already.
Emits the #GtkWidget::mnemonic-activate signal.
The default handler for this signal activates the widget if
group_cycling is %FALSE, and just grabs the focus if group_cycling
is %TRUE.
%TRUE if there are other widgets with the same mnemonic
Emits a "notify" signal for the property property_name on object.
When possible, eg. when signaling a property change from within the class that registered the property, you should use g_object_notify_by_pspec() instead.
Note that emission of the notify signal may be blocked with g_object_freeze_notify(). In this case, the signal emissions are queued and will be emitted (in reverse order) when g_object_thaw_notify() is called.
Creates the GDK (windowing system) resources associated with a
widget. For example, widget->window will be created when a widget
is realized. Normally realization happens implicitly; if you show
a widget and all its parent containers, then the widget will be
realized and mapped automatically.
Realizing a widget requires all
the widget's parent widgets to be realized; calling
gtk_widget_realize() realizes the widget's parents in addition to
widget itself. If a widget is not yet inside a toplevel window
when you realize it, bad things will happen.
This function is primarily used in widget implementations, and isn't very useful otherwise. Many times when you think you might need it, a better approach is to connect to a signal that will be called after the widget is realized automatically, such as GtkWidget::expose-event. Or simply g_signal_connect () to the GtkWidget::realize signal.
Removes widget from container. widget must be inside container.
Note that container will own a reference to widget, and that this
may be the last reference held; so removing a widget from its
container can destroy that widget. If you want to use widget
again, you need to add a reference to it while it's not inside
a container, using g_object_ref(). If you don't want to use widget
again it's usually more efficient to simply destroy it directly
using gtk_widget_destroy() since this will remove it from the
container and help break any circular reference count cycles.
Emits the #GtkDialog::response signal with the given response ID. Used to indicate that the user has responded to the dialog in some way; typically either you or gtk_dialog_run() will be monitoring the ::response signal and take appropriate action.
response ID
If focus is not the current focus widget, and is focusable, sets
it as the focus widget for the window. If focus is %NULL, unsets
the focus widget for this window. To set the focus to a particular
widget in the toplevel, it is usually more convenient to use
gtk_widget_grab_focus() instead of this function.
widget to be the new focus widget, or %NULL to unset any focus widget for the toplevel window.
Sets, or unsets if child is %NULL, the focused child of container.
This function emits the GtkContainer::set_focus_child signal of
container. Implementations of #GtkContainer can override the
default behaviour by overriding the class closure of this signal.
This is function is mostly meant to be used by widgets. Applications can use gtk_widget_grab_focus() to manualy set the focus to a specific widget.
Sets the name of the buildable object.
name to set
Flags a widget to be displayed. Any widget that isn't shown will not appear on the screen. If you want to show all the widgets in a container, it's easier to call gtk_widget_show_all() on the container, instead of individually showing the widgets.
Remember that you have to show the containers containing a widget, in addition to the widget itself, before it will appear onscreen.
When a toplevel container is shown, it is immediately realized and mapped; other shown widgets are realized and mapped when their toplevel container is realized and mapped.
Recursively shows a widget, and any child widgets (if the widget is a container).
This function is typically used when implementing a #GtkContainer subclass. Obtains the preferred size of a widget. The container uses this information to arrange its child widgets and decide what size allocations to give them with gtk_widget_size_allocate().
You can also call this function from an application, with some caveats. Most notably, getting a size request requires the widget to be associated with a screen, because font information may be needed. Multihead-aware applications should keep this in mind.
Also remember that the size request is not necessarily the size a widget will actually be allocated.
See also gtk_widget_get_child_requisition().
a #GtkRequisition to be filled in
This function is only for use in widget implementations. Causes a widget to be unmapped if it's currently mapped.
This function is only useful in widget implementations.
Causes a widget to be unrealized (frees all GDK resources
associated with the widget, such as widget->window).
This function essentially limits the life time of the closure to
the life time of the object. That is, when the object is finalized,
the closure is invalidated by calling g_closure_invalidate() on
it, in order to prevent invocations of the closure with a finalized
(nonexisting) object. Also, g_object_ref() and g_object_unref() are
added as marshal guards to the closure, to ensure that an extra
reference count is held on object during invocation of the
closure. Usually, this function will be called on closures that
use this object as closure data.
#GClosure to watch
Obtains the current default reading direction. See gtk_widget_set_default_direction().
Gets the value set by gtk_window_set_default_icon_list(). The list is a copy and should be freed with g_list_free(), but the pixbufs in the list have not had their reference count incremented.
Returns the fallback icon name for windows that has been set with gtk_window_set_default_icon_name(). The returned string is owned by GTK+ and should not be modified. It is only valid until the next call to gtk_window_set_default_icon_name().
Find the #GParamSpec with the given name for an
interface. Generally, the interface vtable passed in as g_iface
will be the default vtable from g_type_default_interface_ref(), or,
if you know the interface has already been loaded,
g_type_default_interface_peek().
any interface vtable for the interface, or the default vtable for the interface
name of a property to look up.
Add a property to an interface; this is only useful for interfaces that are added to GObject-derived types. Adding a property to an interface forces all objects classes with that interface to have a compatible property. The compatible property could be a newly created #GParamSpec, but normally g_object_class_override_property() will be used so that the object class only needs to provide an implementation and inherits the property description, default value, bounds, and so forth from the interface property.
This function is meant to be called from the interface's default
vtable initialization function (the class_init member of
#GTypeInfo.) It must not be called after after class_init has
been called for any object types implementing this interface.
If pspec is a floating reference, it will be consumed.
any interface vtable for the interface, or the default vtable for the interface.
the #GParamSpec for the new property
Lists the properties of an interface.Generally, the interface
vtable passed in as g_iface will be the default vtable from
g_type_default_interface_ref(), or, if you know the interface has
already been loaded, g_type_default_interface_peek().
any interface vtable for the interface, or the default vtable for the interface
Returns a list of all existing toplevel windows. The widgets
in the list are not individually referenced. If you want
to iterate through the list and perform actions involving
callbacks that might destroy the widgets, you
Creates a new #GtkWindow, which is a toplevel window that can contain other widgets. Nearly always, the type of the window should be #GTK_WINDOW_TOPLEVEL. If you're implementing something like a popup menu from scratch (which is a bad idea, just use #GtkMenu), you might use #GTK_WINDOW_POPUP. #GTK_WINDOW_POPUP is not for dialogs, though in some other toolkits dialogs are called "popups". In GTK+, #GTK_WINDOW_POPUP means a pop-up menu or pop-up tooltip. On X11, popup windows are not controlled by the window manager.
If you simply want an undecorated window (no window borders), use gtk_window_set_decorated(), don't use #GTK_WINDOW_POPUP.
Creates a new #GtkWindow, which is a toplevel window that can contain other widgets. Nearly always, the type of the window should be #GTK_WINDOW_TOPLEVEL. If you're implementing something like a popup menu from scratch (which is a bad idea, just use #GtkMenu), you might use #GTK_WINDOW_POPUP. #GTK_WINDOW_POPUP is not for dialogs, though in some other toolkits dialogs are called "popups". In GTK+, #GTK_WINDOW_POPUP means a pop-up menu or pop-up tooltip. On X11, popup windows are not controlled by the window manager.
If you simply want an undecorated window (no window borders), use gtk_window_set_decorated(), don't use #GTK_WINDOW_POPUP.
type of window
Creates a new instance of a #GObject subtype and sets its properties.
Construction parameters (see %G_PARAM_CONSTRUCT, %G_PARAM_CONSTRUCT_ONLY) which are not explicitly specified are set to their default values.
the type id of the #GObject subtype to instantiate
an array of #GParameter
Removes a colormap pushed with gtk_widget_push_colormap().
Cancels the effect of a previous call to gtk_widget_push_composite_child().
Makes all newly-created widgets as composite children until the corresponding gtk_widget_pop_composite_child() call.
A composite child is a child that's an implementation detail of the container it's inside and should not be visible to people using the container. Composite children aren't treated differently by GTK (but see gtk_container_foreach() vs. gtk_container_forall()), but e.g. GUI builders might want to treat them in a different way.
Here is a simple example: |[ gtk_widget_push_composite_child (); scrolled_window->hscrollbar = gtk_hscrollbar_new (hadjustment); gtk_widget_set_composite_name (scrolled_window->hscrollbar, "hscrollbar"); gtk_widget_pop_composite_child (); gtk_widget_set_parent (scrolled_window->hscrollbar, GTK_WIDGET (scrolled_window)); g_object_ref (scrolled_window->hscrollbar);
By default, after showing the first #GtkWindow, GTK+ calls gdk_notify_startup_complete(). Call this function to disable the automatic startup notification. You might do this if your first window is a splash screen, and you want to delay notification until after your real main window has been shown, for example.
In that example, you would disable startup notification temporarily, show your splash screen, then re-enable it so that showing the main window would automatically result in notification.
%TRUE to automatically do startup notification
Sets the default reading direction for widgets where the direction has not been explicitly set by gtk_widget_set_direction().
the new default direction. This cannot be %GTK_TEXT_DIR_NONE.
Sets an icon to be used as fallback for windows that haven't had gtk_window_set_icon() called on them from a pixbuf.
the icon
Sets an icon to be used as fallback for windows that haven't
had gtk_window_set_icon_list() called on them from a file
on disk. Warns on failure if err is %NULL.
location of icon file
Sets an icon list to be used as fallback for windows that haven't had gtk_window_set_icon_list() called on them to set up a window-specific icon list. This function allows you to set up the icon for all windows in your app at once.
See gtk_window_set_icon_list() for more details.
a list of #GdkPixbuf
Sets an icon to be used as fallback for windows that haven't had gtk_window_set_icon_list() called on them from a named themed icon, see gtk_window_set_icon_name().
the name of the themed icon
Creates a new #GtkWindow, which is a toplevel window that can contain other widgets. Nearly always, the type of the window should be #GTK_WINDOW_TOPLEVEL. If you're implementing something like a popup menu from scratch (which is a bad idea, just use #GtkMenu), you might use #GTK_WINDOW_POPUP. #GTK_WINDOW_POPUP is not for dialogs, though in some other toolkits dialogs are called "popups". In GTK+, #GTK_WINDOW_POPUP means a pop-up menu or pop-up tooltip. On X11, popup windows are not controlled by the window manager.
If you simply want an undecorated window (no window borders), use gtk_window_set_decorated(), don't use #GTK_WINDOW_POPUP.