REALSelectGraphics

[Alexander Cohen <alexander dot cohen at coficio dot com>]

Hi, im using the following code to get the port of a graphics object  
in a MachO plugin, then im getting the pixmap and the base address.  
It works fine except that it always give me the base address of the  
complete screen. Any ideas what might be going on. I've tested with  
many different graphics object coming from canvases and pictures and  
i always get the same results.
        GrafPtr                 oldPort, newPort;
        PixMapHandle    pixMap;
        
        GetPort(&oldPort);
        
        REALSelectGraphics( graphics );
        
        GetPort(&newPort);
        
        pixMap = GetGWorldPixMap( newPort );
        LockPixels( pixMap );
        
        unsigned char*  pixMapBase = (unsigned char*)GetPixBaseAddr(pixMap);


AC
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