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Keyboard Class

Represents the keyboard device.

Namespace: System.Windows.Input
Assembly: PresentationCore (in presentationcore.dll)
XML Namespace:

public static class Keyboard
public final class Keyboard
public final class Keyboard
You cannot use this managed class in XAML.

The Keyboard class provides keyboard related events, methods, and properties which provide information regarding the state of the keyboard.

The keyboard events are raised on the element they are attached to; therefore, event handlers should be attached through the element.

For an element to receive keyboard input, the element must be focusable. To make an element focusable set the Focusable property on the base element to true. For more information on the base elements, see the Base Elements Overview. Panel classes, such as StackPanel and Canvas, set the default value of Focusable is false; therefore, for these objects to obtain keyboard focus Focusable must be set to true.

Keyboard focus refers to the object that is receiving keyboard input. The element with keyboard focus will have IsKeyboardFocused set to true. There can be only one element with keyboard focus on the entire desktop. Logical focus refers to the object within a focus scope that has focus. For more information on focus, keyboard focus, and logical focus, see the Input Overview and the Focus Overview.

The static members of the Keyboard class delegate to the primary KeyboardDevice of the calling thread.

The following example shows how to use the IsKeyToggled method to determine if a key is in the toggled state. If the Key passed to IsKeyToggled is toggled, the background of a button is changed.

// Uses the Keyboard.IsToggled to determine if a key is toggled.
if (Keyboard.IsKeyToggled(Key.Return))
    btnIsToggle.Background = Brushes.Red;
    btnIsToggle.Background = Brushes.AliceBlue;


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0