Win32 Printing Status Check

[Tiger456]

I am using below code to check printing status but it always returns 0. It would be great if you can help me . i think there is some problem in the way i am using GetPrinter method

[DllImport("winspool.Drv", EntryPoint = "OpenPrinterA", SetLastError = true, CharSet = CharSet.Ansi, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
private static extern bool OpenPrinter([MarshalAs(UnmanagedType.LPStr)] string szPrinter, out IntPtr hPrinter, Int32 pDefault);

    /// <summary>
    /// Close Win32 printer
    /// </summary>
    /// <param name="printer"></param>
    /// <returns></returns>
    \[DllImport("winspool.Drv", EntryPoint = "ClosePrinter", SetLastError = true, ExactSpelling = true,
                                                                CallingConvention = CallingConvention.StdCall)\]
    public static extern bool ClosePrinter(IntPtr printer);



    \[DllImport("winspool.Drv", EntryPoint = "GetPrinterDataA", CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true)\]
    public static extern uint GetPrinterData(
                                                \[In\] IntPtr hPrinter,
                                                \[In, MarshalAs(UnmanagedType.LPWStr)\] string pValueName,
                                                \[Out, Optional\] uint pType,
                                                \[Out, Optional\] IntPtr pData,
                                                uint nSize,
                                                \[Out\] uint pcbNeeded
                                            );

    \[DllImport("winspool.Drv", EntryPoint = "GetPrinterA", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)\]
    public static extern bool GetPrinter(
                                           IntPtr hPrinter,
                                           int dwLevel /\* changed type from Int32 \*/,
                                           IntPtr pPrinter,
                                           int dwBuf /\* chagned from Int32\*/,
                                           out int dwNeeded /\* changed from Int32\*/
                                        );

[StructLayout(LayoutKind.Sequ

ential)]
internal struct PRINTER_INFO
{
public IntPtr pServerName;
public IntPtr pPrinterName;
public In