Query Number lock key : Key Event « Windows Presentation Foundation « VB.Net

Query Number lock key

    

<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="WPF" Height="170" Width="200">
    <StackPanel HorizontalAlignment="Center">
        <UniformGrid Columns="2">
            <UniformGrid.Resources>
                <Style TargetType="{x:Type CheckBox}">
                    <Setter Property="IsHitTestVisible" Value="False" />
                    <Setter Property="Margin" Value="5" />
                </Style>
            </UniformGrid.Resources>

        </UniformGrid>
        <Button Content="Check Keyboard" Margin="10" Click="Button_Click"/>
    </StackPanel>
</Window>
//File:Window.xaml.vb

Imports System
Imports System.Windows
Imports System.Windows.Input

Namespace WpfApplication1
  Public Partial Class Window1
    Inherits Window
    Public Sub New()
      InitializeComponent()
      CheckKeyboardState()
    End Sub
    Private Sub Button_Click(sender As Object, e As RoutedEventArgs)
      CheckKeyboardState()
    End Sub
    Private Sub CheckKeyboardState()
      Console.WriteLine(Keyboard.IsKeyToggled(Key.NumLock))
    End Sub
  End Class
End Namespace

1.	Creating a KeyBinding between the Open command and Ctrl-R
2.	Command Handler Key Binding
3.	Use Keyboard.Focus to set the focus to a Text Field
4.	Provide Quick Keyboard Access to Buttons
5.	Reading keyboard modifiers
6.	Reading individual key state with Keyboard.IsKeyDown
7.	Use InputBinding to bind Application commends to Key events
8.	Suppress Keyboard and Mouse Events
9.	Query Left / Right control key
10.	Is Key.CapsLock Toggled
11.	Keyboard.IsKeyToggled
12.	Use KeyBinding to bind Key event to TextBox.InputBindings
13.	Custom Command by KeyGesture and RoutedUICommand
14.	TextBox PreviewKeyDown, PreviewKeyUp, PreviewTextInput, KeyDown, KeyUp and TextChanged events
15.	StackPanel PreviewTextInput and PreviewKeyDown
16.	If input is not a number do not handle the key event
17.	RoutedEvents: Tunneled Key Press
18.	On Key Down Handler

Query Number lock key : Key Event « Windows Presentation Foundation « VB.Net

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