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()));
}
}
}
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();
}
}
}
}
}