This works (but is deprecated in 10.6):

                NSOpenGLPixelFormat *pixelFomat = ....
                CGLPixelFormatObj b = [ pixelFomat CGLPixelFormatObj ];
                CGLContextObj a = CGLGetCurrentContext();
                ciContext =     [ CIContext     contextWithCGLContext:  a
                                                                pixelFormat:    
                b 
                                                                options:        
                        nil
                                        ];

But this does NOT:

                NSGraphicsContext *currentContext = [NSGraphicsContext 
currentContext];
                CGContextRef ctx = [ currentContext graphicsPort];      
                ciContext =     [ CIContext     contextWithCGContext:   ctx 
                                                                options:        
                        nil
                                        ];

What is wrong?


Kind regards,

Gerriet.

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