When working with camera stream in HoloLens, you might get ValidationCaptureResult error code –2147467259. Typically you can check this in method like following one:
void onStartVideoCapture(VideoCapture.VideoCaptureResult result)
This is an none documented error, which basically indicates, that the camera resource is in use. HoloLens camera can be in use if you have started an application, which streams a video of the device. In that case the running app will use camera and your application, which is preventing your application running on HoloLens to access same hardware resource.
May 17 2016, 12:33 PM