CWnd::get_accChild
Visual Studio 2010
Called by the framework to retrieve the address of an IDispatch interface for the specified child.
virtual HRESULT get_accChild( VARIANT varChild, IDispatch **ppdispChild );
Returns S_OK on success, a COM error code on failure. See Return Values in IAccessible::get_accChild in the Windows SDK.
This function is part of MFC's Active Accessibility support.
Override this function in your CWnd-derived class if you have nonwindowed user interface elements (other than windowless ActiveX controls, which MFC handles).
For more information, seeIAccessible::get_accChild in the Windows SDK.