public static bool OpenCashDrawer(bool justprinted)
{
//set justprinted = true if previous line is start_print
string printername = new PrintDocument().PrinterSettings.PrinterName;
if (printername.Equals("Microsoft XPS Document Writer"))
{
return(true);
}
byte[] DrawerOpen = GlobalFunc.getPrinterODByte();
IntPtr unmanagedPointer = Marshal.AllocHGlobal(DrawerOpen.Length);
Marshal.Copy(DrawerOpen, 0, unmanagedPointer, DrawerOpen.Length);
SendBytesToPrinter(printername, unmanagedPointer, DrawerOpen.Length);
Marshal.FreeHGlobal(unmanagedPointer);
return(true);
}