GetGWorldPixMap

GetGWorldPixMap Get a handle to the pixel map for an offscreen graphics world

#include <QDOff screen.h> Graphics Devices

GWorldPtr off screenGWorld ; offscreen GWorld

returns a pointer to the pixel map of an off screen

graphics world.

GetGWorldPixMap returns a handle to the pixel map created for an

offscreen graphics world. Use GetGWorldPixMap whenever you need to

address the pixel map record created for an offscreen graphics world, rather

than dereferencing the GWorldPtr, to ensure compatibility on systems that

have the offscreen graphics world routines but are running the original

QuickDraw (not Color QuickDraw).

For example, you should use this function before calling CopyBits when

copying from the pixel map of an offscreen graphics world:

pixBase = GetGWorldPixMap(off screenGWorld );

CopyBits(*pixBase,myWindow->portBits,&aRect,& otherR,srcCopy,NULL);

Use the GetGWorldPixMap function with offscreen graphics world

that use a handle to a pixel map.