import "objidl.idl"; import "oaidl.idl"; import "oleacc.idl"; interface IMAccessible; const long UACC_NO_FOCUS=0xFFFF; typedef struct { long m_dChildID;//identify a unique child node IMAccessible* m_pIMAccessible; }AccChildNode; typedef struct Location { long m_dLeft; long m_dTop; long m_dWidth; long m_dHeight; }Location;