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InkCanvas.IsGestureRecognizerAvailable Property

Gets whether the gesture recognition component is available on the user's system.

Namespace: System.Windows.Controls
Assembly: PresentationFramework (in presentationframework.dll)
XML Namespace:  http://schemas.microsoft.com/winfx/2006/xaml/presentation

public bool IsGestureRecognizerAvailable { get; }
/** @property */
public boolean get_IsGestureRecognizerAvailable ()

public function get IsGestureRecognizerAvailable () : boolean

You cannot use this property in XAML.

Property Value

true if the recognition component is available; otherwise, false.

The following example demonstrates how to set up an InkCanvas to recognize application gestures.

        // Add this code to the contstructor or OnLoaded method.
        if (inkCanvas1.IsGestureRecognizerAvailable)
        {
            inkCanvas1.EditingMode = InkCanvasEditingMode.InkAndGesture;
            inkCanvas1.Gesture += new InkCanvasGestureEventHandler(inkCanvas1_Gesture);
            inkCanvas1.SetEnabledGestures(new ApplicationGesture[] 
                            {ApplicationGesture.Down, 
                             ApplicationGesture.ArrowDown,
                             ApplicationGesture.Circle});
        }

...

    void inkCanvas1_Gesture(object sender, InkCanvasGestureEventArgs e)
    {
        ReadOnlyCollection<GestureRecognitionResult> gestureResults = 
            e.GetGestureRecognitionResults();

        // Check the first recognition result for a gesture.
        if (gestureResults[0].RecognitionConfidence == 
            RecognitionConfidence.Strong)
        {
            switch (gestureResults[0].ApplicationGesture)
            {
                case ApplicationGesture.Down:
                    // Do something.
                    break;
                case ApplicationGesture.ArrowDown:
                    // Do something.
                    break;
                case ApplicationGesture.Circle:
                    // Do something.
                    break;
            }

        }
    }

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
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