// 设备控制
CLIENT_NET_API BOOL CALL_METHOD CLIENT_ControlDevice(LLONG lLoginID, CtrlType type, void *param, int waittime = 1000);
// 设备控制扩展接口,兼容 CLIENT_ControlDevice
CLIENT_NET_API BOOL CALL_METHOD CLIENT_ControlDeviceEx(LLONG lLoginID, CtrlType emType, void* pInBuf, void* pOutBuf = NULL, int nWaitTime = 1000);
大华网络SDK中设备控制接口CLIENT_ControlDevice中void *param参数应该传什么进去? 有懂大华SDK的大神么。求解答