#ifdef OPESDK_EXPORTS
#define OPESDK_API      __declspec( dllexport )
#define OPESDK_APICALL  __stdcall

#elif defined(OPESDK_LIB)
#define OPESDK_API
#define OPESDK_APICALL

#else
#define OPESDK_API      __declspec( dllimport)
#define OPESDK_APICALL  __stdcall
#endif

  OPESDK_API HI_S32 OPESDK_APICALL OPESDK_Initialize(OUT OPEHANDLE *ppHandle);

OPESDK_API HI_S32 OPESDK_SetDecCallBack(IN OPEHANDLE pHandle,
        IN HI_PLAYER_DecCallBack CallBack,
        IN HI_VOID *pPara);

  /// <summary>
        /// 初始化客户端的SDK，创建通道实例
        /// </summary>
        /// <param name="pHandle">通道的句柄</param>
        /// <returns>通道的句柄</returns>
        [DllImport("SESDK.dll")]
        public static extern int OPESDK_Initialize(ref IntPtr pHandle);


   /// <summary>
        /// 注册解码数据输出回调
        /// </summary>
        /// <param name="pHandle">通道句柄</param>
        /// <param name="callBack">解码后的数据输出回调</param>
        /// <param name="pPara">用户参数</param>
        /// <returns></returns>
        [DllImport("SESDK.dll",CallingConvention=CallingConvention.Cdecl,CharSet=CharSet.Auto)]
        public static extern int OPESDK_SetDecCallBack(IntPtr pHandle, HI_PLAYER_DecCallBack callBack, IntPtr pPara);

int state = JiaYIClient.OPESDK_Initialize(ref pHandle);
            if (state != Const.SUCCESS) { 
               MessageBox.Show("初始化异常");
               return;
            }
            eventCallBack = new OnEventCallBack(eventCallback);
            state = JiaYIClient.OPESDK_SetEventCallBack(pHandle, u32Chn, eventCallBack, pData);
            

            if (state != Const.SUCCESS )
            {
                MessageBox.Show("初始化异常");
                return;
            }
            int state1 = 1;
            state1 = JiaYIClient.OPESDK_SetUrl(pHandle, @"http://192.168.2.158:1026/0?trans=tcp&username=admin&password=123456");

            if (state1 != Const.SUCCESS) {
                MessageBox.Show("设置URL失败"+ state1);
                return;
            }

            int state2 = 1;
            state2 = JiaYIClient.OPESDK_SetWnd(pHandle, pWnd1);
            if (state2 != Const.SUCCESS) {
                MessageBox.Show("设置窗口失败");
                return ;
            }
            int state3 = 1;
            state3 = JiaYIClient.OPESDK_SetDecCallBack(pHandle, decCallBack, pData);
            if (state3 != Const.SUCCESS)
            {
                MessageBox.Show("设置Dec失败");
                return;
            }

            int state4 = 1;

            state4 = JiaYIClient.OPESDK_Connect(pHandle);

            if (Const.SUCCESS != state4) {
                MessageBox.Show("连接失败");
                return;
            }