Sets the index of the data matrix symbol that identifies its position in the current group. The index must be between 1 and 16 and must be smaller than or equal to the number of symbols in the group. The structured append feature must be enabled with the EnableDMAppend function.
SetDMAppendIndex (pDevMode As Long, dwIndex As Long) As Boolean
Input value - pDevMode: handle to the BlackIceDEVMODE structure
Input value - dwIndex: index of the symbol between 1 and 16.
Return value - TRUE on success, FALSE otherwise.
NOTE: For 32-bit applications, use pDevMode as Integer, instead of Long.