TakeScreenshot.xaml.cs

// Copyright 2018 Esri.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.
// You may obtain a copy of the License at: http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific
// language governing permissions and limitations under the License.

using System;
using Windows.UI.Popups;
using Esri.ArcGISRuntime.Mapping;
using Esri.ArcGISRuntime.UI;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Media;

namespace ArcGISRuntime.UWP.Samples.TakeScreenshot
{
    [ArcGISRuntime.Samples.Shared.Attributes.Sample(
        "Take screenshot",
        "MapView",
        "This sample demonstrates how you can take screenshot of a map. Click 'capture' button to take a screenshot of the visible area of the map. Created image is shown in the sample after creation.",
        "")]
    public partial class TakeScreenshot
    {
        public TakeScreenshot()
        {
            InitializeComponent();

            // Setup the control references and execute initialization
            Initialize();
        }

        private void Initialize()
        {
            // Create new Map with basemap
            Map myMap = new Map(Basemap.CreateImagery());

            // Provide used Map to the MapView
            MyMapView.Map = myMap;
        }

        private async void OnTakeScreenshotButtonClicked(object sender, RoutedEventArgs e)
        {
            try
            {
                // Export the image from mapview and assign it to the imageview.
                ImageSource exportedImage = await (await MyMapView.ExportImageAsync()).ToImageSourceAsync();

                // Set the screenshot view to the new exported image.
                ScreenshotView.Source = exportedImage;

                // Make the screenshot view visible in the UI.
                ScreenshotView.Visibility = Visibility.Visible;
            }
            catch (Exception ex)
            {
                await new MessageDialog(ex.ToString(), "Error").ShowAsync();
            }
        }
    }
}