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IDocHostShowUI::ShowHelp

HRESULT STDMETHODCALLTYPE ShowHelp( 
    HWND hwnd,
    LPOLESTR pszHelpFile,
    UINT uCommand,
    DWORD dwData,
    POINT ptMouse,
    IDispatch *pDispatchObjectHit
);

Called by IE4/MSHTML when it needs to show Help.

• Return Values:

  S_OK	Host displayed Help. IE4/MSHTML will not display its Help.
  S_FALSE	Host did not display Help. IE4/MSHTML will display its Help.

hwnd

Handle to the owner window.

pszHelpFile

Help file name.

uCommand

Type of Help. See the WinHelp function.

dwData

Additional data. See the WinHelp function.

ptMouse

Mouse position in screen coordinates.

pDispatchObjectHit

IDispatch of the object at the screen coordinates.

The first four parameters are the same as those passed to the WinHelp function. The ptMouse parameter gives the screen coordinates, and the pDispatchObjectHit parameter allows the host to differentiate the object at the screen coordinates to a greater degree than IE4/MSHTML.

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