Hi James, are you really sure the WHB04B-6 is exactly the same as your WHB04B-4 viewn to the USB API?
If those thingys come with a dll, maybe you can compare the header files? If there is no header file you could ask the manufacturer for it. If they made a programm using that dll, there must be a header file. HTH somehow... -- Marc Santhoff <m.santh...@web.de> _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal