Unitech MR350MKII manual Read Internal port, Codabar

50Read data from external reader(only available for Barcode and Magnetic reader)

Entry Parameters:	AH = 0x50
Returned Values:	DS:DX = buffer pointer
	AX =	0	;data input
		1	;no data input
			Scanning direction
	CL =	0	;from right to left
		1	;from left to right

int TD_get_external(unsigned char *str,int,intwait

*direction)

{

int i; do

{

segregs.ds = FP_SEG(str); regs.x.dx = FP_OFF(str); regs.h.ah=0x50; int86x(0x21,®s,®s,&segregs); *direction =regs.h.cl;

} while (wait && regs.h.al); return(regs.h.al);

	}
52	Read Internal port
	Entry Parameters:	AH = 0x52
	Returned Values:	DS:DX = buffer pointer

AX = 0	; data input
1	; no data input
	Scanning direction
CH = 0	; Barcode data
CL =	0	;from right to left
	1	;from left to right
BL =	0x010	; Code 39
	0x02	; Interleaved 2 of 5
	0x03	: CODABAR
	0x05	: Code 128
	0x06	: EAN 128
	0x07	: Code 93
	0x11	: UPC-A
	0x12	: UPC-E

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