How to Run windows 8 camera api from c#

I'm trying to use webcam to take picture via c#

previously I used some libraries to do that like;

I faced a problem that when I used default win 8(by the way my operation system is win 8) camera application's maximum photo quality was 8px (3264 x 2468); but using above libraries I programaticaly searched for available snapshot qualities, the maximum size was below 2px. I have no idea how win 8 default camera app makes such a big difference. Therefore I decided to use the default windows 8 camera application.

Problem I googled for solution but not could find any idea about how to programaticaly run win 8 camera app from c#. (Just like mobile phones open camera application: take photo, close cam application, then coppy picture from its location into your application directory) Can anyone help please?

Solution

Its very simple. Just follow below steps.

protected async override void OnNavigatedTo(NavigationEventArgs e)
    {
        var ui = new CameraCaptureUI();
        ui.PhotoSettings.CroppedAspectRatio = new Size(4, 3);
        var file = await ui.CaptureFileAsync(CameraCaptureUIMode.Photo);

        if (file != null)
        {
            var bitmap = new BitmapImage();
            bitmap.SetSource(await file.OpenAsync(FileAccessMode.Read));
            Photo.Source = bitmap;
        }
    }

Use below header files,

using Windows.Media.Capture;
using Windows.UI.Xaml.Media.Imaging; // for BitmapImage
using Windows.Storage; // for FileAccessMode

Add Photo inside Grid, like this

<Grid Background="{StaticResource ApplicationPageBackgroundBrush}">
 <Image x:Name="Photo" Width="700" Height="700" />
</Grid>

And finally, Allow WebCam in Capabilities Which you can find in package.manifest. You are done.