C# Definition:

public enum DOCHOSTUITYPE
{
     DOCHOSTUITYPE_BROWSE = 0,
     DOCHOSTUITYPE_AUTHOR = 1
}

public enum DOCHOSTUIDBLCLK
{
     DOCHOSTUIDBLCLK_DEFAULT = 0,
     DOCHOSTUIDBLCLK_SHOWPROPERTIES = 1,
     DOCHOSTUIDBLCLK_SHOWCODE = 2
}

public enum DOCHOSTUIFLAG
{
     DOCHOSTUIFLAG_DIALOG = 0x00000001,
     DOCHOSTUIFLAG_DISABLE_HELP_MENU = 0x00000002,
     DOCHOSTUIFLAG_NO3DBORDER = 0x00000004,
     DOCHOSTUIFLAG_SCROLL_NO = 0x00000008,
     DOCHOSTUIFLAG_DISABLE_SCRIPT_INACTIVE = 0x00000010,
     DOCHOSTUIFLAG_OPENNEWWIN = 0x00000020,
     DOCHOSTUIFLAG_DISABLE_OFFSCREEN = 0x00000040,
     DOCHOSTUIFLAG_FLAT_SCROLLBAR = 0x00000080,
     DOCHOSTUIFLAG_DIV_BLOCKDEFAULT = 0x00000100,
     DOCHOSTUIFLAG_ACTIVATE_CLIENTHIT_ONLY = 0x00000200,
     DOCHOSTUIFLAG_OVERRIDEBEHAVIORFACTORY = 0x00000400,
     DOCHOSTUIFLAG_CODEPAGELINKEDFONTS = 0x00000800,
     DOCHOSTUIFLAG_URL_ENCODING_DISABLE_UTF8 = 0x00001000,
     DOCHOSTUIFLAG_URL_ENCODING_ENABLE_UTF8 = 0x00002000,
     DOCHOSTUIFLAG_ENABLE_FORMS_AUTOCOMPLETE = 0x00004000,
     DOCHOSTUIFLAG_ENABLE_INPLACE_NAVIGATION = 0x00010000,
     DOCHOSTUIFLAG_IME_ENABLE_RECONVERSION = 0x00020000,
     DOCHOSTUIFLAG_THEME = 0x00040000,
     DOCHOSTUIFLAG_NOTHEME = 0x00080000,
     DOCHOSTUIFLAG_NOPICS = 0x00100000,
     DOCHOSTUIFLAG_NO3DOUTERBORDER = 0x00200000,
     DOCHOSTUIFLAG_DELEGATESIDOFDISPATCH = 0x00400000
}

[ StructLayout( LayoutKind.Sequential )]
public struct DOCHOSTUIINFO
{
     public uint cbSize;
     public uint dwFlags;
     public uint dwDoubleClick;
     [MarshalAs(UnmanagedType.BStr)] public string pchHostCss;
     [MarshalAs(UnmanagedType.BStr)] public string pchHostNS;
}

[StructLayout( LayoutKind.Sequential )]
public struct tagMSG
{
     public IntPtr hwnd;
     public uint message;
     public uint wParam;
     public int lParam;
     public uint time;
     public tagPOINT pt;
}

[ComImport()]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
[GuidAttribute("bd3f23c0-d43e-11cf-893b-00aa00bdce1a")]
public interface IDocHostUIHandler
{
     [PreserveSig]
     uint ShowContextMenu(uint dwID, ref tagPOINT ppt,
     [MarshalAs(UnmanagedType.IUnknown)]  object pcmdtReserved,
     [MarshalAs(UnmanagedType.IDispatch)] object pdispReserved);

     void GetHostInfo(ref DOCHOSTUIINFO pInfo);
     void ShowUI(uint dwID, ref object pActiveObject, ref object pCommandTarget, ref object pFrame, ref object pDoc);
     void HideUI();
     void UpdateUI();
     void EnableModeless(int fEnable);
     void OnDocWindowActivate(int fActivate);
     void OnFrameWindowActivate(int fActivate);
     void ResizeBorder(ref tagRECT prcBorder, int pUIWindow, int fRameWindow);

     [PreserveSig]
     uint TranslateAccelerator(ref tagMSG lpMsg, ref Guid pguidCmdGroup, uint nCmdID);

     void GetOptionKeyPath([MarshalAs(UnmanagedType.BStr)] ref string pchKey, uint dw);
     object GetDropTarget(ref object pDropTarget);

     [PreserveSig]
     void GetExternal([MarshalAs(UnmanagedType.IDispatch)] out object ppDispatch);

     [PreserveSig]
     uint TranslateUrl(uint dwTranslate,
     [MarshalAs(UnmanagedType.BStr)] string pchURLIn,
     [MarshalAs(UnmanagedType.BStr)] ref string ppchURLOut);

     IDataObject FilterDataObject(IDataObject pDO);
}

VB Definition:

<ComImport> _
<Guid("TODO")> _
'TODO: Insert <InterfaceType(ComInterfaceType.InterfaceIsIUnknown)> _ if this doesn't derive from IDispatch
Interface IDocHostUIHandler
   TODO
End Interface

User-Defined Types:

None.

Notes:

None.

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