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21A3

Category: IBM workstation/terminal emulators

INT 21 - Attachmate Extra! - SEND KEYSTROKES TO HOST WINDOW

	AH = A3h
	AL = window number (1-4=host B-E)
	CX = 0001h
	DS:BX -> keystroke buffer
	DL = zero if keystroke buffer contains host function code (see #01799),
	      non-zero if keystroke buffer contains ASCII character
Return: CX = zero if character sent, non-zero if not
	BX incremented if CX=0


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