Exemple #1
0
        public static GetCvPort.PRINTER_INFO_2 GetPrinterInfo(string printerName)
        {
            IntPtr hPrinter = new IntPtr();

            if (!GetCvPort.OpenPrinter(printerName, ref hPrinter, (long)IntPtr.Zero))
            {
                throw new Win32Exception(Marshal.GetLastWin32Error());
            }
            IntPtr num = IntPtr.Zero;

            try
            {
                int pcbNeeded1 = new int();
                GetCvPort.GetPrinter(hPrinter, 2, IntPtr.Zero, 0, ref pcbNeeded1);
                if (pcbNeeded1 <= 0)
                {
                    throw new Exception("Fail!!");
                }
                num = Marshal.AllocHGlobal(pcbNeeded1);
                int pcbNeeded2 = new int();
                if (!GetCvPort.GetPrinter(hPrinter, 2, num, pcbNeeded1, ref pcbNeeded2))
                {
                    throw new Win32Exception(Marshal.GetLastWin32Error());
                }
                object structure = Marshal.PtrToStructure(num, typeof(GetCvPort.PRINTER_INFO_2));
                GetCvPort.PRINTER_INFO_2 printerInfo2 = new PRINTER_INFO_2();
                return(structure != null ? (GetCvPort.PRINTER_INFO_2)structure : printerInfo2);
            }
            finally
            {
                GetCvPort.ClosePrinter(hPrinter);
                Marshal.FreeHGlobal(num);
            }
        }
Exemple #2
0
        public static string GetPortName(ref string strPrinterDeviceName)
        {
            int    dwLevel  = 5;
            IntPtr hPrinter = new IntPtr();

            if (!GetCvPort.OpenPrinter(strPrinterDeviceName, ref hPrinter, (long)IntPtr.Zero))
            {
                throw new Win32Exception(Marshal.GetLastWin32Error());
            }
            IntPtr zero = IntPtr.Zero;

            try
            {
                int pcbNeeded1 = new int();
                GetCvPort.GetPrinter(hPrinter, dwLevel, (IntPtr)Conversions.ToLong((string)null), 0, ref pcbNeeded1);
                if (pcbNeeded1 <= 0)
                {
                    throw new Exception("error!");
                }
                IntPtr pPrinter   = Marshal.AllocHGlobal(pcbNeeded1);
                int    pcbNeeded2 = new int();
                if (!GetCvPort.GetPrinter(hPrinter, dwLevel, pPrinter, pcbNeeded1, ref pcbNeeded2))
                {
                    throw new Win32Exception(Marshal.GetLastWin32Error());
                }
                GetCvPort.PRINTER_INFO_2 printerInfo = GetCvPort.GetPrinterInfo(strPrinterDeviceName);
                if (((ulong)printerInfo.Attributes & 2048UL & (ulong)-(((long)printerInfo.Attributes & 1024L) == 0L ? 1 : 0)) > 0UL && printerInfo.pDriverName.IndexOf("DS-RX1") != -1)
                {
                    return(printerInfo.pPortName);
                }
                return("");
            }
            finally
            {
                GetCvPort.ClosePrinter(hPrinter);
            }
        }