private async Task InitializeCameraAsync(DeviceInformation preferredDevice)
{
try
{
// if (_mediaCapture == null)
//{
Debug.WriteLine("open device");
// Get the camera devices
try
{
// Create MediaCapture
_mediaCapture = new MediaCapture();
// Initialize MediaCapture and settings
await _mediaCapture.InitializeAsync(
new MediaCaptureInitializationSettings
{
VideoDeviceId = preferredDevice.Id
});
// Handle camera device location
if (preferredDevice.EnclosureLocation == null ||
preferredDevice.EnclosureLocation.Panel == Windows.Devices.Enumeration.Panel.Unknown)
{
Debug.WriteLine("null");
_externalCamera = true;
}
else
{
_externalCamera = false;
_mirroringPreview = (preferredDevice.EnclosureLocation.Panel == Windows.Devices.Enumeration.Panel.Front);
}
// ShowMessage(preferredDevice.EnclosureLocation.ToString());
_rotationHelper = new CameraRotationHelper(preferredDevice.EnclosureLocation);
_rotationHelper.OrientationChanged += RotationHelper_OrientationChanged;
_mediaCapture.GetPreviewRotation();
// Set the preview source for the CaptureElement
PreviewControl.Visibility = Visibility.Visible;
PreviewControl.Source = _mediaCapture;
PreviewControl.FlowDirection = _mirroringPreview ? FlowDirection.RightToLeft : FlowDirection.LeftToRight;
// popUpDisplayText1.Text = "Let's take a picture! Smile~";
// Start viewing through the CaptureElement
await _mediaCapture.StartPreviewAsync();
await SetPreviewRotationAsync();
}
catch (Exception e)
{
ShowMessage(e.ToString());
}
// }
}
catch (UnauthorizedAccessException Error)
{
ShowMessage(Error.ToString());
}
}
async void CaptureAndRotate(MediaCapture captureMgrReal)
{
// <SnippetCaptureRotateAll>
// <SnippetCaptureRotateInit>
MediaCapture captureMgr = new MediaCapture();
// Set the MediaCapture to a variable in App.xaml.cs to handle suspension.
(App.Current as App).MediaCapture = captureMgr;
await captureMgr.InitializeAsync();
// </SnippetCaptureRotateInit>
// <SnippetCaptureRotateSetRotate>
captureMgr.SetPreviewRotation(VideoRotation.Clockwise90Degrees);
// </SnippetCaptureRotateSetRotate>
// <SnippetCaptureRotateGetRotate>
VideoRotation previewRotation = captureMgr.GetPreviewRotation();
// </SnippetCaptureRotateGetRotate>
// Start capture preview.
// capturePreview is a CaptureElement defined in XAML.
capturePreview.Source = captureMgr;
// Set the CaptureElement to a variable in App.xaml.cs to handle suspension.
(App.Current as App).PreviewElement = capturePreview;
// Lock the orientation of the display while previewing.
DisplayInformation.AutoRotationPreferences = DisplayOrientations.Landscape;
await captureMgr.StartPreviewAsync();
// Set a tracking variable for preview state in App.xaml.cs
(App.Current as App).IsPreviewing = true;
// </SnippetCaptureRotateAll>
}
