CropImage.cs

private async Task CropImage()
{
    // Create destination file and obtain sharing token
    var file = await ApplicationData.Current.LocalFolder.CreateFileAsync("Cropped.jpg", CreationCollisionOption.ReplaceExisting);
    var token = SharedStorageAccessManager.AddFile(file);
    
    // Specify the app to launch using LaunchUriForResults
    var options = new LauncherOptions();
    options.TargetApplicationPackageFamilyName = "Microsoft.Windows.Photos_8wekyb3d8bbwe";
    
    // Specify all the parameters
    var parameters = new ValueSet();
    parameters.Add("CropWidthPixels", 500);
    parameters.Add("CropHeightPixels", 500);
    parameters.Add("EllipticalCrop", true);
    parameters.Add("ShowCamera", false);
    parameters.Add("DestinationToken", token);
    
    // Launches the app and wait for results
    var result = await Launcher.LaunchUriForResultsAsync(new Uri("microsoft.windows.photos.crop:"), options, parameters);
    // Check if the user has really cropped the picture
    if (result.Status == LaunchUriStatus.Success && result.Result != null)
    {
        // Loads the picture
        var stream = await file.OpenReadAsync();
        var bitmap = new BitmapImage();
        await bitmap.SetSourceAsync(stream);
        
        // Set the picture as Source of an Image control
        Preview.Source = bitmap;
    }
}

I would also like to us LaunchUriForResultsAsync to launch my other app. My problem is that it only launches another app in 500x500 window size. I need something bigger than that. Is it possible to make it full screen or maybe any size bigger than 500?