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Portable Network Graphic  |  1990-09-25  |  16.1 KB  |  553x719  |  1-bit (2 colors)
   ocr: Ner offscreen support These new rowines can isolate developers from device dependencies by extending ottscreen pixMlap support. Developers typically use oftscreen support to buffer drawing for fast, seamless updates to the screen. Ottscreen imaging is also convemient for custom rendering algorithms that assume a particular frame buffer connguaton--sice requiring a particular video display mode is not a user trienily solution. Improved graphics pertormance in all bit modes 32-Bit QuickDraw provides pertormance improvements in region-clipped pattern fills and bit blits, swh as updating the deskt ...