GfxControl
PREVENT_DIRECT_BITMAP_ACCESS=PDBA/S, ALLOW_DIRECT_BITMAP_ACCESS=ADBA/S, DUMP/S
C:
Change some internal options of cybergraphics.library
PREVENT_DIRECT_BITMAP_ACCESS -- Causes LockBitMapTagList() calls to always fail ALLOW_DIRECT_BITMAP_ACCESS -- Allow LocKBitMapTagList() to go to gfx driver which may or may not support it. (default) DUMP -- Show current settings
Standard DOS return codes.
By default