void gtk_widget_get_allocation ( GtkWidget* widget, GtkAllocation* allocation )
Retrieves the widget’s allocation.
Note, when implementing a layout container: a widget’s allocation
will be its “adjusted” allocation, that is, the widget’s parent
gtk_widget_size_allocate() with an allocation,
and that allocation is then adjusted (to handle margin
and alignment for example) before assignment to the widget.
gtk_widget_get_allocation() returns the adjusted allocation that
was actually assigned to the widget. The adjusted allocation is
guaranteed to be completely contained within the
gtk_widget_size_allocate() allocation, however.
So a layout container is guaranteed that its children stay inside the assigned bounds, but not that they have exactly the bounds the container assigned.
A pointer to a
GtkAllocationto copy to.
The argument will be set by the function. The data is owned by the caller of the function.