title: Canon EDSDK: Taking photo in LiveView breaks up the LV forever
body: <p>I have my application controlling the camera using C# and fairly lightweight EDSDKWraper (which I have modified a bit). I can already control basically everything, like LiveView, focusing (auto + manual), setting and reading various properties and shooting pictures, optionally with automated Focus bracketting/stacking.</p>
  
  <p>However, there is a problem: When i start the LiveView and then take a photo using the standard way</p>
  
  <pre><code>SendCommand(Camera.Handle, PressShutterButton, ShutterButton_Completely_NonAF);
  SendCommand(Camera.Handle, PressShutterButton, ShutterButton_OFF);
  </code></pre>
  
  <p>it works, I can download the pictures or cancel the download using <code>Download</code> + <code>DownloadComplete</code> or <code>DownloadCancel</code> functions. Unfortunately, after that it not possible to get the LiveView image anymore, the <code>DownloadEvfImage</code> returns <code>OBJECT_NOT_READY</code> and keeps it returning forever.</p>
  
  <p>The only way out is to stop and start the LiveView again OR start the LiveView autofocus using the <code>DoEvfAF</code> command. But I would like to avoid that.</p>
  
  <p>This happens on both Canon 5D Mark IV and 5D Mark III and the same issue also happens on a completely different C# Framework with an different example that I just downloaded from the web. The EOS Utility seems to work fine though, so it seems there is some way.</p>
  
  <p>Does the "LiveView + taking photo + LiveView again" even work in your app, whether C# or C++? Is there some trick I need to perform?</p>
  
  <p>I have already spent a lot of time trying to fing a bug, such as not released data, and searching for answers on web, but no luck so far.</p>