تحرير

مشاركة عبر

TabletDevice.ActiveSource Property

  • Reference

Definition

Namespace:
System.Windows.Input
Assembly:
PresentationCore.dll

Gets the PresentationSource that reports current input for the tablet device.

public:
 virtual property System::Windows::PresentationSource ^ ActiveSource { System::Windows::PresentationSource ^ get(); };
public override System.Windows.PresentationSource ActiveSource { [System.Security.SecurityCritical] get; }
public override System.Windows.PresentationSource ActiveSource { get; }
[<get: System.Security.SecurityCritical>]
member this.ActiveSource : System.Windows.PresentationSource
member this.ActiveSource : System.Windows.PresentationSource
Public Overrides ReadOnly Property ActiveSource As PresentationSource

Property Value

PresentationSource

The PresentationSource that reports current input for the tablet device.

Attributes
SecurityCriticalAttribute

Examples

The following code example demonstrates the ActiveSource property.

PresentationSource myPresentationSource = myTabletDevice.ActiveSource;

if (null != myPresentationSource)
{
    textbox1.AppendText("ActiveSource.RootVisual: " + myPresentationSource.RootVisual.ToString() + "\n");
}
else
{
    textbox1.AppendText("ActiveSource: null\n");
}

Dim myPresentationSource As PresentationSource = myTabletDevice.ActiveSource

If Not IsNothing(myPresentationSource) Then
    textbox1.AppendText("ActiveSource.RootVisual: " & myPresentationSource.RootVisual.ToString() & vbCrLf)
Else
    textbox1.AppendText("ActiveSource: null" & vbCrLf)
End If

Applies to