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CWnd::get_accHelpTopic

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Called by the framework to retrieve the full path of the WinHelp file associated with the specified object and the identifier of the appropriate topic within that file.

virtual HRESULT get_accHelpTopic( 
   BSTR *pszHelpFile, 
   VARIANT varChild, 
   long *pidTopic 
);

Parameters

  • pszHelpFile
    Address of a BSTR that receives the full path of the WinHelp file associated with the specified object, if any.

  • varChild
    Specifies whether the Help topic to be retrieved is that of the object or one of the object's child elements. This parameter can be either CHILDID_SELF (to obtain a Help topic for the object) or a child ID (to obtain a Help topic for one of the object's child elements).

  • pidTopic
    Identifies the Help file topic associated with the specified object. See pidTopic in IAccessible::get_accHelpTopic in the Windows SDK.

Return Value

Returns S_OK on success, a COM error code on failure. See Return Values in IAccessible::get_accHelpTopic in the Windows SDK.

Remarks

This function is part of MFC's Active Accessibility support.

Override this function in your CWnd-derived class to provide help information about your object.

For more information, seeIAccessible::get_accHelpTopic in the Windows SDK.

Requirements

Header: afxwin.h

See Also

Concepts

CWnd Members

Reference

CWnd Class

Hierarchy Chart

CWnd::get_accDescription

CWnd::get_accHelp