Returns the size of the empty white frame around the barcode. It is specified in logical units. One unit is the size of a single datamatrix module. (Specified by SetDMModuleSize)
GetDMQuietZone (pDevMode As Long) As Long
Input value - pDevMode: handle to the BlackIceDEVMODE structure
Return value - Returns the size of the frame in logical units.
NOTE: For 32-bit applications, use pDevMode as Integer, instead of Long.