For normal properties this is used to serialize property values, for custom properties (only when new pspecs are introduced) its needed for value comparisons in boxed pspecs and also to update the UI for undo/redo items etc.
A #GladeWidgetAdaptor
The #GladePropertyDef
The #GValue to convert to a string
For normal properties this is used to serialize property values, for custom properties (only when new pspecs are introduced) its needed for value comparisons in boxed pspecs and also to update the UI for undo/redo items etc.