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EnumWindowStations (user32)

C# Signature:

static extern bool EnumWindowStations(EnumWindowStationsDelegate lpEnumFunc,
   IntPtr lParam);

VB Signature:

<DllImport("user32.dll", EntryPoint:="EnumWindowStations", _

=False, CharSet:=CharSet.Auto, SetLastError:=True)> _

Public Function EnumWindowStations(ByVal lpEnumFunc As EnumWindowStationsDelegate, ByVal lParam As IntPtr) As Boolean

    ' Leave function empty - DLLImport attribute forwards calls
    End Function

User-Defined Types:

Public Delegate Function EnumWindowStationsDelegate(<MarshalAs(UnmanagedType.LPTStr)> ByVal windowsStation As String, ByVal lParam As IntPtr) As Boolean



Tips & Tricks:

Please add some!

Sample Code:

class Program

    [DllImport( "user32.dll" )]
    private static extern bool EnumWindowStations( EnumWindowStationsDelegate lpEnumFunc, IntPtr lParam );

    private delegate bool EnumWindowStationsDelegate( string windowsStation, IntPtr lParam );

    private static bool EnumWindowStationsCallback( string windowStation, IntPtr lParam )
        GCHandle gch       = GCHandle.FromIntPtr( lParam );
        IList<string> list = gch.Target as List<string>;

        if ( null == list ) {
        return (false);

        list.Add( windowStation );

        return (true);

    static void Main()
        IList<string> list           = new List<string>();
        GCHandle gch             = GCHandle.Alloc( list );
        EnumWindowStationsDelegate childProc = new EnumWindowStationsDelegate( EnumWindowStationsCallback );

        EnumWindowStations( childProc, GCHandle.ToIntPtr( gch ) );

        foreach ( string a in list ) {
        Console.WriteLine( a );


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