public static extern BTSTATUS BT_RegisterCallback(EVENT ucEvent, PCALLBACK_ERROR pfnCbkFun);
public static extern BTSTATUS BT_RegisterCallback(EVENT ucEvent, PCALLBACK_ERROR pfnCbkFun);
public static extern BTSTATUS BT_RegisterCallback(EVENT ucEvent, PCALLBACK_ERROR pfnCbkFun);
public static extern BTSTATUS BT_RegisterCallback(EVENT ucEvent, PCALLBACK_ERROR pfnCbkFun);