.NET Wrapper DLL for the WNet API

[DllImport("mpr.dll", CharSet=CharSet.Auto, SetLastError=true)] private static extern int WNetGetConnection( string localName, StringBuilder remoteName, ref int length); <br />
private const int NO_ERROR = 0x00000000;

/// <summary><br />
/// Get the full network path related with a connection drive letter.<br />
/// </summary><br />
/// <param name="szDriveLetter">The local drive letter as a "Z:" or "Z:\" template.</param><br />
/// <returns>The network path of the local drive as a "\\server_name\path" template.</returns><br />
private String zGetConnection(String szDriveLetter)<br />
{<br />
  //Start length, if it isn't enough, will enlarge it later.<br />
  int length = 100;<br />
  StringBuilder remoteName = new StringBuilder(length);<br />
  int res = WNetGetConnection(szDriveLetter, remoteName, ref length);<br />
  <br />
  /* If the call fails because the StringBuilder is not large enough, the call<br />
   * returns a value of 234(ERROR_MORE_DATA), and the length parameter contains<br />
   * the required size. */<br />
  if(res==ERROR_MORE_DATA)<br />
  {<br />
    remoteName = new String Builder(length);<br />
    res = WNetGetConnection(szDriveLetter, remoteName, ref length);<br />
  }<br />
<br />
  if(res==NO_ERROR)<br />
    return remoteNAme.ToString();<br />
  else<br />
    throw new System.ComponentModel.Win32Exception(res);<br />
}