Denso BHT-700-CE Reference Manual page 99

Barcode handy terminal

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When dwCDType is N (Codabar), the length of barcode data must be three digits or more including

start and stop characters. If not, this function gets "0" and returns an error code.

To check whether the CD is correct: Pass a CD-suffixed barcode data to the BHT_GetBarChkDgt

function as shown below. If the returned value is equal to the CD, the CD data is suitable for the

barcode data.

[Ex]

BHT_GetBarChkDgt(TEXT("a0123-a"), 'M', &dwChkDgt);

if ( dwChkDgt == '-' ) {

printf("CD OK");

}

To add a CD to barcode data: Pass barcode data followed by a dummy character to the

BHT_GetBarChkDgt function as shown below. The returned value will become the CD to be replaced

with the dummy character.

[Ex]

wcscpy(wchBarData, TEXT("a0123a"));

len = wcslen(wchBarData);

wcsncpy(wchTmp1BarData, wchBarData, len – 1);

wcscpy(wchTmp2BarData, wchTmp1BarData);

wcscat(wchTmp2BarData, TEXT("0"));

wcscat(wchTmp2BarData, &(wchBarData[len – 1]));

BHT_GetBarChkDgt(wchTmp2BarData) 'M', &dwChkDgt);

wprintf(TEXT("%s%c%s"), wchTmp1BarData, dwChkDgt, &wchTmp2BarData[len-1]));

Result

> CD = a0123-a

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