Re: GDK_IS_WINDOW (window) failed

[Timm Bäder <mail baedert org>]

On 08.08, Stefan Salewski wrote:
> No idea. I tried some hours to modify my code, but no change. Is that a
> known bug of GTK 3.18? Well, gedit seems to have it not, so there may
> be a way to suppress it. Google told me that it may be related to the
> realize functions, but that does not really help me removing that
> problem.

That might be possible of course (especially if your code base does not
contain a widget that creates its own GdkWindows), but the advice is the
same for all criticals and warnings you get: Run in gdb with
G_DEBUG=fatal-warnings or G_DEBUG=fatal-criticals and once you hit the
one you're interested in, print a backtrace (make sure you have
GTK+ debugging symbols).