C# Signature:

[DllImport("wininet.dll", CharSet=CharSet.Auto, SetLastError=true)]
static extern bool InternetGetCookie(string lpszUrlName, string lpszCookieName,
     [Out] string lpszCookieData, [MarshalAs(UnmanagedType.U4)] out int lpdwSize);

VB Signature:

Declare Auto Function InternetGetCookie Lib "wininet.dll" ( _
     ByVal lpszUrlName As String, ByVal lpszCookieName As String, _
     ByVal lpszCookieData As String, ByRef lpdwSize As Integer) As Boolean

User-Defined Types:

None.

Notes:

You can pass null (Nothing in Visual Basic) to the lpszCookieData parameter to get the require buffer size from the lpdwSize parameter.

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Sample Code:

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Alternative Managed API:

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