pinvoke.net: Edit: winspool.XcvData

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Summary: This allows you to communicate with a print monitor

!!!!C# Signature:
 [DllImport("winspool.drv", SetLastError=true)]
 static extern bool XcvData(IntPtr hXcv, [MarshalAs(UnmanagedType.LPWStr)] string pszDataName, IntPtr InputData, uint cbInputData, 
                      IntPtr OutputData, uint cbOutputData,out uint cbOutputNeeded,out uint dwStatus);

!!!!VB Signature:
 Declare Function XcvData Lib "winspool.drv" (TODO) As TODO
!!!!User-Defined Types:

[PRINTER_DEFAULTS]

!!!!Notes:
None.

!!!!Sample Code:

const  uint SERVER_ACCESS_ADMINISTER   = 0x00000001;

string szIPAddress="";
         string xcvName = String.Format(",XcvPort {0}", portName);

IntPtr buf= Marshal.AllocHGlobal(256);
         IntPtr hXcv = IntPtr.Zero;

PRINTER_DEFAULTS Defaults = new PRINTER_DEFAULTS();
	 Defaults.pDatatype = 0 ;
	 Defaults.pDevMode = 0;
         Defaults.DesiredAccess = SERVER_ACCESS_ADMINISTER;

// Handle to a local machine
         if (OpenPrinter(xcvName,out hXcv, ref Defaults )) 
         {
            uint cbOutputNeeded;
            uint dwStatus;
            // hXvc contains an Xcv data handle to a local TCPMON port
            if (XcvData(hXcv, "IPAddress", IntPtr.Zero, 0, buf, 256, out cbOutputNeeded, out dwStatus))
	    {
               szIPAddress= Marshal.PtrToStringAuto(buf);
               Console.Write(szRet);
            }

}

ClosePrinter(hXcv);

if (buf != IntPtr.Zero)
            Marshal.FreeHGlobal(buf);

Documentation: XcvData@msdn on MSDN
Documentation: TCPMON Xcv Commands  on MSDN http://msdn.microsoft.com/en-us/library/ms802169.aspx