Denso BHT-202Q Bedienungsanleitung PDF herunterladen (Seite 144)

100

101

When CD type is P (MSI):

The barcode data must be two or more digits in length. Otherwise,

this function throws

an exception. To calculate a two-digit CD, call this function twice.

To check whether the CD is correct, pass a piece of barcode data with a CD to the

Scanner.GetChkDigit method as shown below. If the returned value is equal to the CD,

then the CD is correct.

[VB]

If (Scanner.GetChkDigit("123456782", "P") = Asc("2")) Then

Console.WriteLine ("CD OK")

End If

[C#]

UnicodeEncoding encode = new UnicodeEncoding();

if (Scanner.GetChkDigit("123456782", 'P') == (int)encode.GetBytes("2")[0]) {

Console.WriteLine ("CD OK");

}

To append a CD to barcode data, pass a piece of barcode data with a dummy character

appended to the Scanner.GetChkDigit method as shown below. The returned value

will be the CD. Replace the dummy character with the returned value.

[VB]

Dim origData As String = "12345678"

Dim digit As Integer = Scanner.GetChkDigit(origData+"0", "P")

Console.WriteLine("CD = {0}", origData + New String(Chr(digit), 1))

[C#]

string origData = "12345678";

int digit = Scanner.GetChkDigit(origData+"0", 'P');

byte[] digitByteArray = {(byte)digit};

ASCIIEncoding encode = new ASCIIEncoding();

Console.WriteLine("CD = {0}", origData + encode.GetString(digitByteArray, 0, 1));

Result

> CD = 123456782

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