Tries to ensure that there is a window-system native window for this GdkWindow. This may fail in some situations, returning %FALSE.
Offscreen window and children of them can never have native windows.
Some backends may not support native child windows.
%TRUE if the window has a native window, %FALSE otherwise
2.18
See Implementation
Tries to ensure that there is a window-system native window for this GdkWindow. This may fail in some situations, returning %FALSE.
Offscreen window and children of them can never have native windows.
Some backends may not support native child windows.