StylusPlugIn.OnStylusLeave(RawStylusInput, Boolean) Método

Definição

Namespace:

System.Windows.Input.StylusPlugIns

Assembly:

PresentationCore.dll

Ocorre em um thread de caneta quando o cursor do mouse deixa os limites de um elemento.

protected:
 virtual void OnStylusLeave(System::Windows::Input::StylusPlugIns::RawStylusInput ^ rawStylusInput, bool confirmed);

protected virtual void OnStylusLeave (System.Windows.Input.StylusPlugIns.RawStylusInput rawStylusInput, bool confirmed);

abstract member OnStylusLeave : System.Windows.Input.StylusPlugIns.RawStylusInput * bool -> unit
override this.OnStylusLeave : System.Windows.Input.StylusPlugIns.RawStylusInput * bool -> unit

Protected Overridable Sub OnStylusLeave (rawStylusInput As RawStylusInput, confirmed As Boolean)

Parâmetros

rawStylusInput

RawStylusInput

Um RawStylusInput que contém informações sobre a entrada da caneta.

confirmed

Boolean

true se a caneta de fato deixou os limites do elemento; caso contrário, false.

Exemplos

O exemplo a seguir redefine quando StylusPlugIn o cursor sai dos limites do elemento.

// StylusPointCollection that contains the stylus points of the current
// stroke.
StylusPointCollection points;

// Keeps track of the stylus to check whether two styluses are used on the
// digitizer.
int currentStylus;

' StylusPointCollection that contains the stylus points of the current
' stroke.
Private points As StylusPointCollection

' Keeps track of the stylus to check whether two styluses are used on the
' digitizer.
Private currentStylus As Integer

// If the element loses focus, stop collecting the points and don't
// perform gesture recognition.
protected override void OnStylusLeave(RawStylusInput rawStylusInput, bool confirmed)
{
    if (confirmed)
    {
        // Clear the StylusPointCollection
        points = null;
        currentStylus = 0;
    }
}

' If the element loses focus, stop collecting the points and don't
' perform gesture recognition.
Protected Overrides Sub OnStylusLeave(ByVal rawStylusInput As RawStylusInput, ByVal confirmed As Boolean)

    If confirmed Then
        ' Clear the StylusPointCollection
        points = Nothing
        currentStylus = 0
    End If

End Sub

Comentários

Esse método ocorre em um thread de caneta, portanto, minimize o trabalho nesse método para evitar afetar o desempenho.