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  1. /*
  2. *    FILE:        offscreen2.c
  3. *    AUTHOR:        R. Gonzalez
  4. *    CREATED:    June 28, 1993
  5. *
  6. *    Demonstrates
  7. *    offscreen drawing. Code taken from CopyBits example in Think Ref 2.0
  8. *    and from Offscreen Graphics example. (Also tried Offscreen PixMaps
  9. *    example and Creating Offscreen BitMaps example.)
  10. *
  11. *    This version checks for presence of Color QuickDraw.
  12. *
  13. *    It also tries to sync to vertical retrace -- doesn't work if bitmap too large.
  14. *
  15. *    Try using global coords for NewGWorld rec.
  16. *
  17. *    PROJECT CONTENTS:
  18. *        offscreen.c, MacTraps, ANSI
  19. *
  20. *    COMPILATION:
  21. *        68881 code generation if avail. MacHeaders prefix.
  22. */
  23.