public async Task <IMediaStream> GetDisplayMediaStreamAync(MediaStreamConstraints mediaStreamConstraints = null) { var mediaStream = await _mediaDevices.GetDisplayMedia(mediaStreamConstraints ?? new MediaStreamConstraints { Video = new MediaStreamContraintsUnion { Object = new MediaTrackConstraints { Cursor = CursorOptions.Never, DisplaySurface = DisplaySurfaceOptions.Monitor } } }); return(mediaStream); }