A user function supplied when calling gtk_menu_popup() which
controls the positioning of the menu when it is displayed. The
function sets the x and y parameters to the coordinates where the
menu is to be drawn. To make the menu appear on a different
monitor than the mouse pointer, gtk_menu_set_monitor() must be
called.
A user function supplied when calling gtk_menu_popup() which controls the positioning of the menu when it is displayed. The function sets the
xandyparameters to the coordinates where the menu is to be drawn. To make the menu appear on a different monitor than the mouse pointer, gtk_menu_set_monitor() must be called.