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  1. Macintosh
  2. Sample Code Notes
  3. _____________________________________________________________________________
  4.                                                   Developer Technical Support
  5.  
  6. #15:    Offscreen
  7.  
  8. Written by:    Rick Blair
  9.  
  10. Versions:            1.00                        April 1989
  11.                     1.01                        June 1992
  12.  
  13. Components:            Offscreen.p                    April 1, 1989
  14.                     Offscreen.incl.p            April 1, 1989
  15. _____________________________________________________________________________
  16.  
  17. These routines provide a high-level interface to the QuickDraw and 
  18. Color Manager routines which allow the creation and manipulation 
  19. of off-screen bitmaps and pixel maps.  They are designed to run on 
  20. any machine with 128K or later ROMs (sorry 64K ROM fans).
  21.  
  22. Note that the design incorporates the idea that you can go along 
  23. pretending there is an off-screen buffer, even when one could not 
  24. be allocated, and the calls will do nothing.
  25.  
  26.  
  27. Changes with version 1.01
  28. _________________________
  29.  
  30. Updated to work with MPW 3.2 header files by changing "chunky" to "chunkyPix"
  31. and removing extra type declarations.