LPT并口zebra打印代码段

 

    class Printer
    {
        [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
        private static extern SafeFileHandle CreateFile(string lpFileName, int dwDesiredAccess, int dwShareMode,
               int lpSecurityAttributes, int dwCreationDisposition, int dwFlagsAndAttributes, int hTemplateFile);

        public static bool PrintLPT(string ZPL)
        {
            SafeFileHandle iHandle = CreateFile("LPT1", 0x40000000, 0, 0, 3, 0, 0);

            if (!iHandle.IsInvalid)
            {
                FileStream fs = new FileStream(iHandle, FileAccess.ReadWrite);
                StreamWriter sw = new StreamWriter(fs, Encoding.Default);
                sw.WriteLine(ZPL);
                sw.Close();
                fs.Close();
                return true;
            }
            else
            {
                return false;
            }
        }
　　}