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retrieving pixelformat in CGL

Subject: retrieving pixelformat in CGL
From: Justin Hensley <email@hidden>
Date: Mon, 01 Nov 2004 09:46:24 -0500
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Is there a way to retrieve the the pixel format that a certain CGL context uses? I'd like to get the current context, and then use its pixel format to create a new context. ie:

// Get current context
CGLContextObj ctx = CGLGetCurrentContext();

// Get ctx's pixel format
CGLPixelFormatObj ctx_pixel_format =  ???;

// Create new context
CGLContextObj  new_ctx;
CGLCreateContext( ctx_pixel_format, NULL, &new_ctx );

thanks!
-j
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