RecognitionAlternate.Confidence, propriété

Article
11/05/2008

Mise à jour : November 2007

Obtient le niveau de fiabilité qu'un module de reconnaissance accorde à la reconnaissance d'un objet RecognitionAlternate.

Espace de noms : Microsoft.Ink
Assembly : Microsoft.Ink (dans Microsoft.Ink.dll)

Syntaxe

'Déclaration
Public ReadOnly Property Confidence As RecognitionConfidence
'Utilisation
Dim instance As RecognitionAlternate
Dim value As RecognitionConfidence

value = instance.Confidence

public RecognitionConfidence Confidence { get; }

public:
property RecognitionConfidence Confidence {
    RecognitionConfidence get ();
}

/** @property */
public RecognitionConfidence get_Confidence()

public function get Confidence () : RecognitionConfidence

Valeur de propriété

Type : Microsoft.Ink.RecognitionConfidence
Niveau de fiabilité qu'un module de reconnaissance accorde à la reconnaissance d'un objet RecognitionAlternate ou d'un mouvement.

Notes

Si la proposition de substitution représente une expression ou une phrase, la valeur représente le niveau de fiabilité le plus faible d'un segment de reconnaissance trouvé dans l'expression ou la phrase. Cependant, si la proposition représente un mot, la valeur représente le niveau de fiabilité de celui-ci.

Remarque :
Cette propriété lève une exception si le Recognizer qui génère RecognitionAlternate ne prend pas en charge les niveaux de fiabilité.

Parmi les modules de reconnaissance Microsoft®, seuls les modules Reconnaissance d'écriture Microsoft - Anglais (États-Unis) et Reconnaissance de mouvements Microsoft prennent en charge les niveaux de fiabilité. Les modules de reconnaissance tiers ne prennent pas nécessairement en charge les niveaux de confiance.

Exemples

Cet exemple C# définit des gestionnaires d'événements pour un formulaire, ConfidenceAlternatesForm, auquel un contrôle Button (page pouvant être en anglais), theButton, a été ajouté. L'exemple définit également un InkCollector, theInkCollector, un RecognizerContext, theRecognizerContextet un RecognitionResult, theRecognitionResult, qui sont utilisés pour collecter l'entrée manuscrite et effectuer la reconnaissance.

Le gestionnaire d'événements pour l'événement de chargement du formulaire crée un collecteur d'entrée manuscrite et obtient un contexte de reconnaissance pour la langue anglaise (États-Unis).

Le gestionnaire d'événements pour l'événement Click du bouton exécute la reconnaissance sur les traits dans le collecteur d'entrée manuscrite, divise les traits le long des limites de fiabilité et colore les traits en fonction de leur niveau de fiabilité.

[C#]

// Declare ink elements and create drawing attributes.
Microsoft.Ink.InkCollector theInkCollector = null;
Microsoft.Ink.RecognizerContext theRecognizerContext = null;
Microsoft.Ink.RecognitionResult theRecognitionResult = null;

Microsoft.Ink.DrawingAttributes theStrongDA =
    new DrawingAttributes(Color.Green);
Microsoft.Ink.DrawingAttributes theIntermediateDA =
    new DrawingAttributes(Color.Goldenrod);
Microsoft.Ink.DrawingAttributes thePoorDA =
    new DrawingAttributes(Color.Red);

// Event handler for the form's Load event.
private void ConfidenceAlternatesForm_Load(object sender, System.EventArgs e)
{
    // Create the ink collector.
    this.theInkCollector = new Microsoft.Ink.InkCollector(this.Handle);
    this.theInkCollector.Enabled = true;

    // Get a recognizer context for the English (US) recognizer.
    foreach (Recognizer theRecognizer in new Recognizers())
    {
        foreach (short lcid in theRecognizer.Languages)
        {
            // 0409 is the LCID for the en-us language.
            if (0x0409 == lcid)
            {
                this.theRecognizerContext = theRecognizer.CreateRecognizerContext();
                break;
            }
        }
        if (null != theRecognizerContext)
        {
            break;
        }
    }
    // Throw an exception if the recognizer is not found.
    if (null == theRecognizerContext)
    {
        throw new ApplicationException("No recognizer found");
    }
}

// Event handler for the button's Click event.
private void theButton_Click(object sender, System.EventArgs e)
{
    // Check for ink before performing recognition.
    if (0 == this.theInkCollector.Ink.Strokes.Count)
    {
        System.Windows.Forms.MessageBox.Show("No ink to recognize.");
        return;
    }

    // Perform recognition on the strokes currently in the ink collector.
    Microsoft.Ink.RecognitionStatus theRecognitionStatus;
    this.theRecognizerContext.Strokes = this.theInkCollector.Ink.Strokes;
    this.theRecognitionResult =
        this.theRecognizerContext.Recognize(out theRecognitionStatus);

    // Check the recognition status.
    if (Microsoft.Ink.RecognitionStatus.NoError != theRecognitionStatus)
    {
        System.Windows.Forms.MessageBox.Show(
            "There was an error recognizing the ink.");
        return;
    }

    // Check for a recognition result.
    if (null == this.theRecognitionResult)
    {
        System.Windows.Forms.MessageBox.Show(
            "No recognition result available.");
        return;
    }

    // Get the confidence alternates collection for the top alternate.
    Microsoft.Ink.RecognitionAlternates theConfidenceAlternates =
        this.theRecognitionResult.TopAlternate.ConfidenceAlternates;

    using (System.Drawing.Graphics g = this.CreateGraphics())
    {
        // Clear the drawing surface
        g.Clear(this.BackColor);

        // For each confidence alternate in the collection:
        foreach(Microsoft.Ink.RecognitionAlternate theAlternate
                    in theConfidenceAlternates)
        {
            // Update the drawing attributes.
            switch (theAlternate.Confidence)
            {
                case Microsoft.Ink.RecognitionConfidence.Strong:
                    theAlternate.Strokes.ModifyDrawingAttributes(
                        theStrongDA);
                    break;
                case Microsoft.Ink.RecognitionConfidence.Intermediate:
                    theAlternate.Strokes.ModifyDrawingAttributes(
                        theIntermediateDA);
                    break;
                case Microsoft.Ink.RecognitionConfidence.Poor:
                    theAlternate.Strokes.ModifyDrawingAttributes(
                        thePoorDA);
                    break;
            }
        }
        // Redraw the ink.
        this.theInkCollector.Renderer.Draw(g, this.theRecognitionResult.Strokes);
    }
}

// Event handler for the form's Closed event.
private void ConfidenceAlternatesForm_Closed(object sender, System.EventArgs e)
{
    // Free the resources for the ink collector, recognizer context, and pens.
    this.theInkCollector.Dispose();
    this.theInkCollector = null;
    this.theRecognizerContext.Dispose();
    this.theRecognizerContext = null;
}

Cet exemple Microsoft Visual Basic® .NET définit des gestionnaires d'événements pour un formulaire, ConfidenceAlternatesForm, auquel un contrôle Button (page pouvant être en anglais), theButton, a été ajouté. L'exemple définit également un InkCollector, theInkCollector, un RecognizerContext, theRecognizerContextet un RecognitionResult, theRecognitionResult, qui sont utilisés pour collecter l'entrée manuscrite et effectuer la reconnaissance.

[Visual Basic]

' Declare ink elements and create drawing attributes.
Dim theInkCollector As Microsoft.Ink.InkCollector
Dim theRecognizerContext As Microsoft.Ink.RecognizerContext
Dim theRecognitionResult As Microsoft.Ink.RecognitionResult

Dim theStrongDA As Microsoft.Ink.DrawingAttributes = New DrawingAttributes(Color.Green)
Dim theIntermediateDA As Microsoft.Ink.DrawingAttributes = New DrawingAttributes(Color.Goldenrod)
Dim thePoorDA As Microsoft.Ink.DrawingAttributes = New DrawingAttributes(Color.Red)

' Event handler for the form's Load event.
Private Sub ConfidenceAlternatesForm_Load(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles MyBase.Load

    ' Create the ink collector.
    Me.theInkCollector = New Microsoft.Ink.InkCollector(Me.Handle)
    Me.theInkCollector.Enabled = True

    ' Get a recognizer context for the English (US) recognizer.
    For Each theRecognizer As Recognizer In New Recognizers
        For Each lcid As Short In theRecognizer.Languages
            ' 0409 is the LCID for the en-us language.
            If &H409 = lcid Then
                Me.theRecognizerContext = theRecognizer.CreateRecognizerContext()
                Exit For
            End If
        Next
        If Not (theRecognizerContext Is Nothing) Then
            Exit For
        End If
    Next
    ' Throw an exception if the recognizer is not found.
    If theRecognizerContext Is Nothing Then
        Throw New ApplicationException("No recognizer found")
    End If
End Sub

' Event handler for the "Recognize" button's Click event.
Private Sub theButton_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles theButton.Click

    ' Check for ink before performing recognition.
    If Me.theInkCollector.Ink.Strokes.Count = 0 Then
        System.Windows.Forms.MessageBox.Show("No ink to recognize.")
        Return
    End If

    ' Perform recognition on the strokes currently in the ink collector.
    Dim theRecognitionStatus As Microsoft.Ink.RecognitionStatus
    Me.theRecognizerContext.Strokes = Me.theInkCollector.Ink.Strokes
    Me.theRecognitionResult = _
        Me.theRecognizerContext.Recognize(theRecognitionStatus)

    ' Check for a recognition result.
    If (Me.theRecognitionResult Is Nothing) Then
        System.Windows.Forms.MessageBox.Show("No recognition result available.")
        Return
    End If

    ' Get the confidence alternates collection for the top alternate.
    Dim theConfidenceAlternates As Microsoft.Ink.RecognitionAlternates = _
        Me.theRecognitionResult.TopAlternate.ConfidenceAlternates

    ' Create a temporary graphics object.
    Dim g As System.Drawing.Graphics = Me.CreateGraphics()

    ' Clear the drawing surface
    g.Clear(Me.BackColor)

    ' For each confidence alternate in the collection:
    For Each theAlternate As Microsoft.Ink.RecognitionAlternate _
                In theConfidenceAlternates

        ' Update the drawing attributes.
        Select Case theAlternate.Confidence
            Case RecognitionConfidence.Strong
                theAlternate.Strokes.ModifyDrawingAttributes(theStrongDA)
            Case RecognitionConfidence.Intermediate
                theAlternate.Strokes.ModifyDrawingAttributes(theIntermediateDA)
            Case RecognitionConfidence.Poor
                theAlternate.Strokes.ModifyDrawingAttributes(thePoorDA)
        End Select
    Next

    ' Redraw the ink.
    Me.theInkCollector.Renderer.Draw(g, Me.theRecognitionResult.Strokes)

    ' Dispose of the graphics object.
    g.Dispose()
End Sub

' Event handler for the form's Closed event.
Private Sub ConfidenceAlternatesForm_Closed(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles MyBase.Closed

    ' Free the resources for the ink collector and recognizer context.
    Me.theInkCollector.Dispose()
    Me.theInkCollector = Nothing
    Me.theRecognizerContext.Dispose()
    Me.theRecognizerContext = Nothing
End Sub

Plateformes

Windows Vista

Le .NET Framework et le .NET Compact Framework ne prennent pas en charge toutes les versions de chaque plateforme. Pour obtenir la liste des versions prises en charge, consultez Configuration requise du .NET Framework.