語言

StylusPlugIn.OnStylusLeave(RawStylusInput, Boolean) 方法

定義

命名空間:
System.Windows.Input.StylusPlugIns
組件:
PresentationCore.dll

當游標離開元素的邊界時，會發生在筆執行緒上。

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)

參數

rawStylusInput
RawStylusInput

RawStylusInput A 包含筆輸入資訊的 A。

confirmed
Boolean

true如果筆真的離開了元素的邊界;否則，。 false

範例

以下範例在游標離開元素邊界時重置 。StylusPlugIn

// 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

備註

此方法發生在筆線程上，因此盡量減少工作量，以避免影響效能。

適用於