pinvoke.net: Edit: wininet.InternetQueryOption

@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$
@pinvoke=http://pinvoke.net/$$$.htm

Summary: Used to query Windows' current Internet proxy settings.

!!!!C# Signature:
 [DllImport("wininet.dll", SetLastError=true)]
 static extern bool InternetQueryOption(IntPtr hInternet, uint dwOption, char[] lpBuffer, ref int lpdwBufferLength);
!!!!VB Signature:
 <DllImport("wininet.dll", SetLastError:=True)> Shared Function InternetQueryOption(ByVal hInternet As IntPtr, ByVal dwOption As UInteger, ByVal  lpBuffer() As Char, ByRef lpdwBufferLength As Integer) As Boolean
End Function
!!!!User-Defined Types:
None.

!!!!Notes:
In order to set new proxy settings use InternetSetOption.

!!!!Tips & Tricks:
Please add some!

!!!!Sample Code:

Retrieve WinInet version in C#:
 const int INTERNET_OPTION_VERSION = 40;
 
 [StructLayout(LayoutKind.Sequential)]
 public struct INTERNET_VERSION_INFO
 {
     public int dwMajorVersion;
     public int dwMinorVersion;
 };
 
 // Note that I named the imported fcn "InternetQueryVersion" due to custom arg signature
 [DllImport("wininet.dll", EntryPoint = "InternetQueryOption")]
 private extern static bool InternetQueryVersion(int Handle, int OptionFlag, ref INTERNET_VERSION_INFO Version, ref int size);
 
 INTERNET_VERSION_INFO Version = new INTERNET_VERSION_INFO();
 int size = Marshal.SizeOf(Version);
 bool r = InternetQueryVersion(0, INTERNET_OPTION_VERSION, ref Version, ref size);

!!!!Alternative Managed API:
Do you know one?  Please contribute it!

Documentation: InternetQueryOption@msdn on MSDN
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wininet/wininet/internetqueryoption.asp