Inside Macintosh: Imaging with QuickDraw
To initialize Color QuickDraw, use the InitGraf procedure, described in the chapter "Basic QuickDraw." Besides initializing basic QuickDraw, this procedure initializes Color QuickDraw on computers that support it.
In addition to InitGraf , all other basic QuickDraw routines work with Color QuickDraw. For example, you can use the GetPort procedure to save the current color graphics port, and you can use the CopyBits procedure to copy an image between two different color graphics ports. See the chapters "Basic QuickDraw" and "QuickDraw Drawing" for descriptions of additional routines that you can use with Color QuickDraw.