C# Signature:

[DllImport("query.dll", SetLastError=true, CharSet=CharSet.Unicode)]
static extern int LoadIFilter(string pwcsPath,
          [MarshalAs(UnmanagedType.IUnknown)] object pUnkOuter,
          ref IFilter ppIUnk);

VB Signature:

Declare Unicode Function LoadIFilter Lib "query.dll" (ByVal pwcsPath As String, _
           <MarshalAs(UnmanagedType.IUnknown)> ByVal pUnkOuter As Object, _
                               ByRef ppIUnk As IFilter) As Integer

User-Defined Types:

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Notes:

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