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List: pykde
Subject: Re: [PyQt] Screenshot with no show
From: David Boddie <david () boddie ! org ! uk>
Date: 2011-06-21 18:16:24
Message-ID: 201106212016.29978.david () boddie ! org ! uk
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On Tue Jun 21 10:40:56 BST 2011, Mads Ipsen wrote:
> I have a GLWidget (OpenGL) based window which is used for displaying
> chemical structures. I would like to use this window to generate
> thumbnails used as icons for the files containing the chemical structures.
>
> I would like to hide this process of icon generation from the user, so
> is there any way that you can
>
> * Show/display a GLWidget/QWidget in some sort of virtual frame
> buffer, in such a way that is does NOT appear visual to the user.
> * Dump the contents of the invisible window into a pixmap.
You probably want to look at the QGLPixelBuffer class and the associated
example (which is only available in C++...) for inspiration:
http://doc.qt.nokia.com/4.7/qglpixelbuffer.html
David
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