void gtk_widget_get_allocation ( GtkWidget* widget, GtkAllocation* allocation )
Retrieves the widget’s allocation.
Note, when implementing a
GtkContainer: a widget’s allocation will
be its “adjusted” allocation, that is, the widget’s parent
container typically calls
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
is guaranteed that its children stay inside the assigned bounds,
but not that they have exactly the bounds the container assigned.
There is no way to get the original allocation assigned by
gtk_widget_size_allocate(), since it isn’t stored; if a container
implementation needs that information it will have to track it itself.
Available since: 2.18
A pointer to a
GtkAllocationto copy to.
The argument will be set by the function. The data is owned by the instance.