Called by the framework to retrieve the selected children of this object.
virtual HRESULT get_accSelection(
Returns S_OK on success, a COM error code on failure. See Return Values in IAccessible::get_accSelection 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, see IAccessible::get_accSelection in the Windows SDK.