C# Signature:

[ComImport()]
[Guid("000214eb-0000-0000-c000-000000000046")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
public interface IExtractIcon
{
   [PreserveSig]
   IntPtr GetIconLocation(uint uFlags,
   [MarshalAs(UnmanagedType.LPStr)] StringBuilder szIconFile,
              int cchMax,
              out int piIndex,
              out uint pwFlags);

   [PreserveSig]
   IntPtr Extract(IntPtr pszFile,
          uint nIconIndex,
          out IntPtr phiconLarge,
          out IntPtr phiconSmall,
          uint nIconSize);
}

VB Signature:

<ComImport()> _
<Guid("000214eb-0000-0000-c000-000000000046")> _
<InterfaceType(ComInterfaceType.InterfaceIsIUnknown)> _

     <PreserveSig()> _
     Function GetIconLocation(ByVal uFlags As Integer, _
                 <MarshalAs(UnmanagedType.LPStr)> _
                  ByRef szIconFile As StringBuilder, _
                  ByVal cchMax As Integer, _
                  ByRef piIndex As Integer, _
                  ByRef pwFlags As Integer) As IntPtr

Public Interface IExtractIcon
     <PreserveSig()> _
     Function Extract(ByVal pszFile As IntPtr, _
              ByVal nIconIndex As Integer, _
              ByVal phiconLarge As IntPtr, _
              ByVal phiconSmall As IntPtr, _
              ByVal nIconSize As Integer) As Integer
End Interface

User-Defined Types:

None.

Notes:

GetIconLocation() must be declared before Extract()! If you don't, you will get a cryptic runtime error (Read/write of protected memory).

The parameters phiconLarge and phiconSmall are out-parameters in C#!

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