void gtk_widget_snapshot_child ( GtkWidget* widget, GtkWidget* child, GtkSnapshot* snapshot )
Snapshot the a child of
When a widget receives a call to the snapshot function,
it must send synthetic
to all children. This function provides a convenient way
of doing this. A widget, when it receives a call to its
Gtk.WidgetClass.snapshot function, calls
gtk_widget_snapshot_child() once for each child, passing in
snapshot the widget received.
gtk_widget_snapshot_child() takes care of translating the origin of
snapshot, and deciding whether the child needs to be snapshot.
This function does nothing for children that implement