From kde-devel Mon Jun 18 17:23:15 2001 From: Waldo Bastian Date: Mon, 18 Jun 2001 17:23:15 +0000 To: kde-devel Subject: Re: Exit application X-MARC-Message: https://marc.info/?l=kde-devel&m=99288524321287 On Monday 18 June 2001 01:23 am, Thomas Satzinger wrote: > Hi there, > i do not know if i am OT here (if yes, please tell me), but i have the > following problem. Everything related to "writing an app based on KDE2" is on topic. > i am writing an app based on KDE2 with KDEveleop 1.4 Well. isn't that a coincedence! > It works not bad, but when exiting the app i get the following message: > > X Error of failed request: BadWindow (invalid Window parameter) > Major opcode of failed request: 1 (X_CreateWindow) > Resource id in failed request: 0x0 > Serial number of failed request: 2746 > Current serial number in output stream: 2878 > > I do not think its a programming error. > Can somebody please explain me, what these lines try to tell me?!? Never figured that out completely myself. It has something to do with the asynchronous nature of the X protocol. E.g. the application sends something to the X server and then gets a response back somewhat later. The above message seems to indicate that the X server has decided to delete some window (probably because it was asked too) but the application doesn't know this yet (maybe because it hasn't read everything yet the X server has send it) and still tries to do some operation on this window. It's most often a rather harmless message but somewhat annoying of course. I got them once when I created a KMessageBox directly after closing another one. Maybe Qt has some issues in this field. Dunno. Cheers, Waldo -- bastian@kde.org | SuSE Labs KDE Developer | bastian@suse.com >> Visit http://master.kde.org/mailman/listinfo/kde-devel#unsub to unsubscribe <<