widget must be inside
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
again, you need to add a reference to it while it's not inside
a container, If you don't want to use
again it's usually more efficient to simply destroy it directly
gtkWidgetDestroy since this will remove it from the
container and help break any circular reference count cycles.
a current child of
Derived by RGtkGen from GTK+ documentation
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