Silverlight Tips of the Day - Blog by Mike Snow

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;

namespace ShiftMouseClick

{

    public partial class Page : UserControl

    {

        public Page()

        {

            InitializeComponent();

            this.MouseLeftButtonDown += new MouseButtonEventHandler(Page_MouseLeftButtonDown);

        }

        void Page_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)

        {

            Data.Text = String.Empty;

            ModifierKeys keys = Keyboard.Modifiers;

            bool shiftKey = (keys & ModifierKeys.Shift) != 0;

            bool altKey = (keys & ModifierKeys.Alt) != 0;

            bool appleKey = (keys & ModifierKeys.Apple) != 0;

            bool controlKey = (keys & ModifierKeys.Control) != 0;

            bool windowsKey = (keys & ModifierKeys.Windows) != 0;

            if (true == shiftKey)

                Data.Text += "<shift>";

            if (true == altKey)

                Data.Text += "<alt>";

            if (true == appleKey)

                Data.Text += "<apple>";

            if (true == controlKey)

                Data.Text += "<ctrl>";

            if (true == windowsKey)

                Data.Text += "<windows>";

            Data.Text += " Left Clicked";

        }

    }

}

<UserControl x:Class="ShiftMouseClick.Page"

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 

    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 

    Width="800" Height="600">

    <Grid x:Name="LayoutRoot" Background="White">

        <TextBlock x:Name="Data">Click here (also use alt,ctrl,windows,apple,shift keys)</TextBlock>

    </Grid>

</UserControl>