function AccessibleObjectFromPoint(Pt: TPoint; var Acc: IAccessible; var Child: Variant): HRESULT; stdcall; external 'OleAcc.dll' name 'AccessibleObjectFromPoint';function AccessibleObjectFromWindow(AHWnd: HWND; dwObjectID: DWORD; const riid: TGUID; out ppvObject):HResult; stdcall; external 'OLEACC.DLL' name 'AccessibleObjectFromWindow';function AccessibleChildren(paccContainer: Pointer; iChildStart: LONGINT; cChildren: LONGINT; out rgvarChildren: OleVariant; out pcObtained: LONGINT): HRESULT; stdcall; external 'OLEACC.DLL' name 'AccessibleChildren';