Loading Your Own Image

You can also load your own image to crop. This can be accomplished easily with a general button control and some code behind.

Markup	Copy Code
<Button Content="Load your own image" Click="LoadImage" Margin="0 0 10 0" Width="180" HorizontalAlignment="Left" />

The code that that responds to the click event will open a File Picker and allow you to choose the image file you wish to display and then crop.

C#	Copy Code
private async void LoadImage(object sender, RoutedEventArgs e) { var picker = new FileOpenPicker(); picker.FileTypeFilter.Add(".png"); picker.FileTypeFilter.Add(".jpg"); picker.FileTypeFilter.Add(".gif"); picker.FileTypeFilter.Add(".jpeg"); StorageFile file = await picker.PickSingleFileAsync(); if (file != null) { using (var fileStream = await file.OpenStreamForReadAsync()) { try { LoadImageStream(fileStream); } catch (Exception ex) { LoadDefaultImage(); MessageDialog md = new MessageDialog("Image format not supported, error: \n" + ex.Message, ""); md.ShowAsync(); } } } }

Copy Code

private async void LoadImage(object sender, RoutedEventArgs e)
        {
            var picker = new FileOpenPicker();
            picker.FileTypeFilter.Add(".png");
            picker.FileTypeFilter.Add(".jpg");
            picker.FileTypeFilter.Add(".gif");
            picker.FileTypeFilter.Add(".jpeg");
            StorageFile file = await picker.PickSingleFileAsync();
           
            if (file != null)
            {
                using (var fileStream = await file.OpenStreamForReadAsync())
                {
                    try
                    {
                        LoadImageStream(fileStream);
                    }
                    catch (Exception ex)
                    {
                        LoadDefaultImage();
                        MessageDialog md = new MessageDialog("Image format not supported, error: \n" + ex.Message, "");
                        md.ShowAsync();
                    }
                }
            }
        }