//停止播放(预览)重载无参
 public static bool Stop1()
 {
     closeAllocion1();//每次播放结束会话
     if (HkSDK.OpenSDK_StopRealPlay(SessionId, 0) == 0)
     {
         return(HkSDK.OpenSDK_StopRealPlay(SessionId, 0) == 0);
     }
     else
     {
         return(false);
     }
 }
 //停止播放(预览)
 public static bool Stop(IntPtr SessionId)
 {
     closeAllocion(SessionId);//每次播放结束会话
     return(HkSDK.OpenSDK_StopRealPlay(SessionId, 0) == 0);
 }