RoutedEvents: Key Modifiers
<Window x:Class="RoutedEvents.KeyModifiers"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="KeyModifiers" Height="300" Width="300">
<StackPanel Margin="5">
<TextBox KeyDown="KeyEvent"></TextBox>
<TextBlock Name="lblInfo"></TextBlock>
<Button Click="CheckShift">Check Current Shift State</Button>
</StackPanel>
</Window>
//File:Window.xaml.cs
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
namespace RoutedEvents
{
public partial class KeyModifiers : System.Windows.Window
{
public KeyModifiers()
{
InitializeComponent();
}
private void KeyEvent(object sender, KeyEventArgs e)
{
lblInfo.Text = "Modifiers: " + e.KeyboardDevice.Modifiers.ToString();
if ((e.KeyboardDevice.Modifiers & ModifierKeys.Control) == ModifierKeys.Control)
{
lblInfo.Text += "\r\nYou held the Control key.";
}
}
private void CheckShift(object sender, RoutedEventArgs e)
{
if (Keyboard.IsKeyDown(Key.LeftShift))
{
lblInfo.Text = "The left Shift is held down.";
}
else
{
lblInfo.Text = "The left Shift is not held down.";
}
}
}
}
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