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Copyright 1991 David Jurgens |
TC: int bioskey( int cmd )
- prototype in bios.h
- keyboard operations
- cmd = 0 return next keystroke w/o echo (INT 16,0)
= 1 test if key waiting; 0=none (INT 16,1)
= 2 return shift key status (see INT 16,2)
- AND returned value with 0x00FF to get ASCII value
- Ctrl-Break causes "while (!bioskey(1))" to loop infinitely in
Turbo C 2.0 and earlier since it places a zero in the keyboard queue
- MS C uses _bios_keybrd()
- see INT 16
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bioskey |
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