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Home » Extra libraries, Code snippets, applications etc. » U++ users applications in progress and useful code snippets, including reference examples! » An OpenGL ctrl for Linux / X11
Re: An OpenGL ctrl for Linux / X11 [message #3609 is a reply to message #3608] Tue, 06 June 2006 19:48 Go to previous messageGo to previous message
cyrion is currently offline  cyrion
Messages: 15
Registered: May 2006
Location: Grenoble, France
Promising Member
luzr wrote on Tue, 06 June 2006 17:59


BTW, IMO "UseGLXVisual" could be replaces by existing "BackPaint(EXCLUDEPAINT)".


I have just tested BackPaint() but it doesn't work because DoPaint() is still called with a bad X visual Confused

I get things like that :
X Error: BadDrawable (invalid Pixmap or Window parameter), request: X_CreateGC, resource id: 136899272 = 828EAC8
X Error: BadGC (invalid GC parameter), request: X_SetClipRectangles, resource id: 48234558 = 2E0003E
X Error: BadGC (invalid GC parameter), request: X_SetClipRectangles, resource id: 48234558 = 2E0003E
X Error: BadGC (invalid GC parameter), request: X_SetClipRectangles, resource id: 48234558 = 2E0003E
X Error: BadGC (invalid GC parameter), request: X_FreeGC, resource id: 48234558 = 2E0003E

IMHO, instead of using a variable like my dirty UseGLXVisual it would probably be best to take into account the fact that some controls can require special visuals that does not require a Draw object to be created. But I don't know how ! (a kind of BackPaint(3DPAINT) ?)
In the end, I think that Ctrl::Paint() should still be called, but with a 'null/disabled' Draw object in parameter...

 
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