Int 21/AX=4403h

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PenDOS PENDEV.SYS - ???

AX = 4403h
BX = file handle for device "$$PENDOS" or "$$PD_REG"
CX = size of buffer
DS:DX -> buffer containing ???

Return:
CF clear if successful buffer filled CF set on error AX = error code (01h,05h,06h,0Dh) (see #01680 at AH=59h/BX=0000h)

Program: A limited version of PenDOS by Communication Intelligence Corporation, which provides pen capability to keyboard-based programs, is bundled with IBM DOS 6.1

Note: This call sets the WORD at offset 1Ah into the device driver request header used to call the driver to 0000h.

See Also: AX=4402h"PENDEV.SYS"

Category: Non-Traditional Input Devices - Int 21h - P

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