Unitech PT630, Programming Reference Manual

Page: 32 / 73

PT630 Programming Reference Guide Page 32 of 59
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1.5.17 Barcode symbology setting function
1.5.17.1 Enable/Disable Decoding of a Barcode Symbology
Entry Parameter:
AH = 1FH
BH = 1
AL = 1 ; Enable decoding of barcode symbology
0 ; Disable decoding of barcode symbology
BL = 0 ; All supported bar code symbologies
1 ; Code 39
2 ; I 2 of 5
3 ; Codabar
4 ; EAN/UPC
5 ; Code 128
6 ; EAN 128
Return Value: None
Example :
void TD_set_decode_status(int type,int status)
{
regs.h.ah= 0x1F;
regs.h.al= (unsigned char)status;
regs.h.bh= 1;
regs.h.bl= (unsigned char)type;
int86(0x21,&regs,&regs);
}
1.5.17.2 Get Decoding Status of a Barcode Symbology
Entry parameter: AH = 1FH
BH = 2
BL = 1 ; Code 39
2 ; I 2 of 5
3 ; Codabar
4 ; EAN/UPC
5 ; Code 128
6 ; EAN 128
Return Value: AL = 0/1 ; Disable/Enable
Example :
int TD_get_decode_bar(int type)
{
regs.h.ah = 0x1F;
regs.h.bh = 2;
regs.h.bl = (unsigned char)type;
int86(0x21,&regs,&regs);
return(regs.h.al);
}
1.5.17.3 Code 39 Settings
Entry parameter: AH = 1FH
BH = 3