C# Signature:

[DllImport("wininet.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool InternetGetLastResponseInfo(
   out int errorCode, StringBuilder buffer, ref int bufferLength);

VB Signature:

Declare Function InternetGetLastResponseInfo Lib "wininet.dll" Alias "InternetGetLastResponseInfoA" _
   (ByRef errorCode As Integer, ByVal buffer As String, ByRef bufferLength As Integer) _
   As <MarshalAs(UnmanagedType.Bool)> Boolean

User-Defined Types:

None.

Notes:

None.

Tips & Tricks:

Please add some!

Sample Code:

  Private _errorCode As Integer = 0
  Private _buffSize As Integer = 0

  Private Function getLastResponse() As String

    'Call in once to get the size of the buffer we will need
    InternetGetLastResponseInfo(_errorCode, vbNullString, _buffSize)

    'Allocate space for the message
    Dim message As String = Space(_buffSize + 1)

    'Get the message
    InternetGetLastResponseInfo(_errorCode, message, _buffSize)

    Return message

  End Function

Alternative Managed API:

Do you know one? Please contribute it!

Direct Link: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wininet/wininet/InternetGetLastResponseInfo.asp