GestureRecognizer.Recognize(StrokeCollection) メソッド

public:
 System::Collections::ObjectModel::ReadOnlyCollection<System::Windows::Ink::GestureRecognitionResult ^> ^ Recognize(System::Windows::Ink::StrokeCollection ^ strokes);

[System.Security.SecurityCritical]
public System.Collections.ObjectModel.ReadOnlyCollection<System.Windows.Ink.GestureRecognitionResult> Recognize(System.Windows.Ink.StrokeCollection strokes);

public System.Collections.ObjectModel.ReadOnlyCollection<System.Windows.Ink.GestureRecognitionResult> Recognize(System.Windows.Ink.StrokeCollection strokes);

[<System.Security.SecurityCritical>]
member this.Recognize : System.Windows.Ink.StrokeCollection -> System.Collections.ObjectModel.ReadOnlyCollection<System.Windows.Ink.GestureRecognitionResult>

member this.Recognize : System.Windows.Ink.StrokeCollection -> System.Collections.ObjectModel.ReadOnlyCollection<System.Windows.Ink.GestureRecognitionResult>

Public Function Recognize (strokes As StrokeCollection) As ReadOnlyCollection(Of GestureRecognitionResult)

パラメーター

戻り値

GestureRecognizerが認識したアプリケーション ジェスチャを含むGestureRecognitionResult型の配列。

属性

SecurityCriticalAttribute

例

次の例では、 Stroke が ScratchOut ジェスチャであるかどうかを判断する方法を示します。

private bool InterpretScratchoutGesture(Stroke stroke)
{
    // Attempt to instantiate a recognizer for scratchout gestures.
    ApplicationGesture[] gestures = { ApplicationGesture.ScratchOut };
    GestureRecognizer recognizer = new GestureRecognizer(gestures);

    if (!recognizer.IsRecognizerAvailable)
        return false;

    // Determine if the stroke was a scratchout gesture.
    StrokeCollection gestureStrokes = new StrokeCollection();
    gestureStrokes.Add(stroke);

    ReadOnlyCollection<GestureRecognitionResult> results = recognizer.Recognize(gestureStrokes);

    if (results.Count == 0)
        return false;

    // Results are returned sorted in order strongest-to-weakest; 
    // we need only analyze the first (strongest) result.
    if (results[0].ApplicationGesture == ApplicationGesture.ScratchOut &&
          results[0].RecognitionConfidence == RecognitionConfidence.Strong)
    {
        // Use the scratchout stroke to perform hit-testing and 
        // erase existing strokes, as necessary.
        return true;
    }
    else
    {
        // Not a gesture: display the stroke normally.
        return false;
    }
}

Private Function InterpretScratchoutGesture(ByVal stroke As Stroke) As Boolean
    ' Attempt to instantiate a recognizer for scratchout gestures.
    Dim gestures() As ApplicationGesture = {ApplicationGesture.ScratchOut}

    Dim recognizer As New GestureRecognizer(gestures)

    If Not recognizer.IsRecognizerAvailable Then
        Return False
    End If

    ' Determine if the stroke was a scratchout gesture.
    Dim gestureStrokes As StrokeCollection = New StrokeCollection()
    gestureStrokes.Add(stroke)

    Dim results As ReadOnlyCollection(Of GestureRecognitionResult)
    results = recognizer.Recognize(gestureStrokes)

    If results.Count = 0 Then
        Return False
    End If

    ' Results are returned sorted in order strongest-to-weakest; 
    ' we need only analyze the first (strongest) result.
    If (results(0).ApplicationGesture = ApplicationGesture.ScratchOut) Then

        ' Use the scratchout stroke to perform hit-testing and 
        ' erase existing strokes, as necessary.
        Return True
    Else
        ' Not a gesture: display the stroke normally.
        Return False
    End If
End Function

注釈

Recognize メソッドによって返される配列は、GestureRecognitionResult.RecognitionConfidence プロパティで並べ替えられます。 たとえば、 Recognize は、次の値を持つ GestureRecognitionResult 配列を返します。

つまり、 GestureRecognizer は、 Stroke がチェック マークである可能性が非常に高く、 Stroke がジェスチャではなく、 Stroke が curlicue または二重カーリキューである可能性が低い可能性が比較的高いと認識していることを意味します。