コード例 #1
0
        private void CaptureLoop(DXGIManager manager, System.Windows.Forms.Control controlToDraw)
        {
            _dataStream = new DataStream(_clipRect.Width * _clipRect.Height * 4, true, true);

            while (true)
            {
                int signalId = EventWaitHandle.WaitAny(_waitSignals, Timeout.Infinite);

                if (signalId == 0)
                {
                    break;
                }

                if (manager.Capture(copyFrameBuffer, 1000) == true)
                {
                    SharpDX.Direct2D1.Bitmap bitmap = _renderTarget.CreateBitmap(_dataStream);
                    if (bitmap != null)
                    {
                        _queue.Add(bitmap);
                    }
                }

                if (controlToDraw.Created)
                {
                    controlToDraw.BeginInvoke((Action)(() => this.DrawToWindow()));
                }
            }
        }
コード例 #2
0
        private void captureThreadFunc(object arg)
        {
            DXGIManager manager = null;

            System.Windows.Forms.Control controlToDraw = arg as System.Windows.Forms.Control;

            while (true)
            {
                using (manager = new DXGIManager(_captureSource))
                {
                    if (manager.Initialized == false)
                    {
                        Thread.Sleep(500);
                        continue;
                    }

                    // 이 코드에서 controlToDraw.Handle을 사용하면 "Cross-thread operation not valid" 오류 발생
                    _renderTarget.Initialize(_drawingWindowHandle, _clipRect.Width, _clipRect.Height);

                    // Initialize 호출 후 너무 빠르게 Capture를 호출하면 (검은 색의) 빈 화면이 나올 수 있음.
                    // 필요하다면 Sleep을 호출
                    // Thread.Sleep(500);

                    try
                    {
                        CaptureLoop(manager, controlToDraw);
                        break;
                    }
                    catch (SharpDXException e)
                    {
                        if (e.ResultCode != DXGIError.DXGI_ERROR_ACCESS_LOST)
                        {
                            // 예를 들어, Ctrl + Shift + Alt 키를 눌러 데스크탑 전환을 한 경우
                            manager.Dispose();
                        }
                    }
                }
            }
        }