If a window has a resize grip, this will retrieve the grip position, width and height into the specified #GdkRectangle.
a pointer to a #GdkRectangle which we should store the resize grip area
true if the resize grip’s area was retrieved
Deprecated: Resize grips have been removed.
If a window has a resize grip, this will retrieve the grip position, width and height into the specified #GdkRectangle.