It can be triggered by shortcut keys to save the entire screen or the content of a specified area as a picture.

public class Screenshot

Attributes

Property
IsDrawing
IsSelecting
Size
SizeStr
PixelColor
PixelColorStr
PreviewBrush

Method

Name	Description
Start()	Start screenshot

Events

Name	Description
Snapped	Triggered when the screenshot is complete

Case

new Screenshot().Start();

or

<Button Content="Start Screenshot" Command="hc:ControlCommands.StartScreenshot"/>

Snapped

public partial class ScreenshotDemoCtl : IDisposable
    {
        public ScreenshotDemoCtl()
        {
            InitializeComponent();
            Screenshot.Snapped += Screenshot_Snapped;
        }

        private void Screenshot_Snapped(object sender, FunctionEventArgs<ImageSource> e)
        {
            new HandyControl.Controls.Window
            {
                Content = new Image
                {
                    Source = e.Info,
                    Stretch = Stretch.None
                },
                WindowStartupLocation = WindowStartupLocation.CenterScreen
            }.ShowDialog();
        }

        public void Dispose() => Screenshot.Snapped -= Screenshot_Snapped;
    }