DMFontEncode Function |
  
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DMFontEncode Function |
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Encodes a string using DataMatrix format.
Public Function DMFontEncode(ByVal Message As String, _ ByVal Mode As Integer, _ ByVal PreferredFormat As Integer, _ ByVal HandleTilde As Boolean) As Integer |
Parameters
Message
String to be encoded using DataMatrix format.
Mode
Indicates which encoding mode is used, this parameter can be one of the following values.
Value |
Comment |
0 |
Auto mode for optimized encoding |
1 |
ASCII encoding mode |
2 |
C40 encoding mode |
3 |
Text encoding mode |
4 |
Base256 encoding mode |
PreferredFormat
Indicates which format is used, the values of all formats are listed here.
HandleTilde
Indicates whether to process the tilde character "~" or not, the detailed description is:
o"~1" is used to represent the FNC1 code.
o"~2" is used to represent the Structured Append and must be followed by a 3-digit number between 1 and 255.
o"-3" is used only at the very beginning of the symbol for the reader programming purpose.
o"~5" is used only at the very beginning of the symbol, the header [)> + ASCII 30 + ASCII 05 + ASCII 29 will be transmitted by the barcode reader before the data in the message and the trailer ASCII 30 + ASCII 4 will be transmitted afterwards.
o"~6" is used only at the very beginning of the symbol, the header [)> + ASCII 30 + ASCII 06 + ASCII 29 will be transmitted by the barcode reader before the data in the message and the trailer ASCII 30 + ASCII 4 will be transmitted afterwards.
o"~7NNNNNN" is used to specify the Extended Channel and NNNNNN is a value between 000000 and 999999.
o"~dNNN" is used to represent the ASCII character with the value of NNN.
Return Value
Number of DataMatrix format string blocks. Each block has 254 characters, the only exception is that last block might contain <254 characters. Since Crystal Reports UFL function only allows the returned string with maximum 254 characters, we have to build entire DataMatrix format string by concatenating all blocks together.