RE: How I can do Double Buffer without OpenGL Ext?

[Shawn Bakhtiar]

Well in the good old days, when we did have all these fancy smancy libraries ( 
:P ) we use to double buffer graphics by drawing to an off screen bitmap or any 
compatible context (to that of the screen) and then simply copy that context to 
the screen.

I.E.

1) Create a new GtkBitmap,
2) Draw everything to the bitmap
3) copy the bits to screen

 



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> Date: Thu, 11 Feb 2010 11:41:47 -0300
> Subject: How I can do Double Buffer without OpenGL Ext?
> From: grojas....@gmail.com
> To: gtk-app-devel-list@gnome.org
> 
> Hi,
> 
> I'm working in avoid the flicker when i paint my widget draw area. Then my
> questions are the following:
> How i can to do double buffer?, but without GL Ext, using just gtk draw area
> and pixbuf or pixmap. And If it is posible or only can I to work double
> buffer with GL Ext???.
> 
> Any idea?
> 
> Regards.
> 
> 
> Gustavo Rojas
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