The whole GDK_IS_WINDOW() branch of this was a bit screwed up, because it

The whole GDK_IS_WINDOW() branch of this was a bit screwed up, because it

2001-08-06  Havoc Pennington  <hp@pobox.com>

 	* gdk/x11/gdkimage-x11.c (_gdk_x11_get_image): The whole
 	GDK_IS_WINDOW() branch of this was a bit screwed up, because
 	it was expecting a GdkWindow, not a GdkWindowImplX11.

 	Also, we were getting the window rect in screen coords
 	and the screen rect in window coords then intersecting
 	them; instead, get window rect in window coords.

 	Finally, there were codepaths that resulted in a stuck server grab
 	(when the window was fully onscreen, or on gdk_image_new()
 	failure); make the server ungrab thing a bit more
 	robust/consistent.