Keyboard.IsKeyDown Method (Key)


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Determines whether the specified key is pressed.

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

public static bool IsKeyDown(
	Key key


Type: System.Windows.Input.Key

The specified key.

Return Value

Type: System.Boolean

true if key is in the down state; otherwise, false.

The GetKeyStates method can be used to determine the set of states of a specific key.

The following example shows how to use the IsKeyDown method to determine the state of a specific key. The Return key is passed to the IsKeyDown method. If the method returns true, the background of a Button is changed.

// Uses the Keyboard.IsKeyDown to determine if a key is down.
// e is an instance of KeyEventArgs.
if (Keyboard.IsKeyDown(Key.Return))
    btnIsDown.Background = Brushes.Red;
    btnIsDown.Background = Brushes.AliceBlue;

.NET Framework
Available since 3.0
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