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Int 1A Fn 3601 - Word Perfect V5.0 Third Party Interface - Installation [A]
AX = 3601h
Return: DS:SI = routine to monitor keyboard input, immediately preceded by the
ASCIZ string "WPCORP\0"
Notes: WordPerfect 5.0 will call this interrupt at start up to determine if a
third party product wants to interface with it. The third party
product must intercept this interrupt and return the address of a
keyboard monitor routine.
Before checking for keyboard input, and after every key entered by the
user, Word Perfect will call the routine whose address was provided
in DS:SI with the following parameters:
Entry: AX = key code or 0
BX = WordPerfect state flag
Exit: AX = 0 or key code
BX = 0 or segment address of buffer with key codes
See the "WordPerfect 5.0 Developer's Toolkit" for further information.
See Also: INT 16/AX=5500h
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