Warning
gdk_gc_set_subwindow has been deprecated since version 2.22 and should not be used in newly-written code. There is no replacement. If you need to control
subwindows, you must use drawing operations of the underlying window
system manually. Cairo will always use GDK_INCLUDE_INFERIORS on sources
and masks and GDK_CLIP_BY_CHILDREN on targets.
Sets how drawing with this GC on a window will affect child
windows of that window.
Warning gdk_gc_set_subwindow has been deprecated since version 2.22 and should not be used in newly-written code. There is no replacement. If you need to control subwindows, you must use drawing operations of the underlying window system manually. Cairo will always use GDK_INCLUDE_INFERIORS on sources and masks and GDK_CLIP_BY_CHILDREN on targets. Sets how drawing with this GC on a window will affect child windows of that window.