TouchFrameEventArgs.GetPrimaryTouchPoint Method
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Returns the primary touch point for the reported frame as a TouchPoint value. The touch point can be evaluated against a coordinate reference point instead of the absolute Silverlight coordinates.
Namespace: System.Windows.Input
Assembly: System.Windows (in System.Windows.dll)
Syntax
'Declaration
Public Function GetPrimaryTouchPoint ( _
relativeTo As UIElement _
) As TouchPoint
public TouchPoint GetPrimaryTouchPoint(
UIElement relativeTo
)
Parameters
- relativeTo
Type: System.Windows.UIElement
A coordinate reference point that can be used to offset the coordinates of the return value TouchPoint . If you want the reference to be based on Silverlight absolute coordinates, specify relativeTo as nulla null reference (Nothing in Visual Basic).
Return Value
Type: System.Windows.Input.TouchPoint
The primary touch point for the reported frame.
Remarks
This value can be nulla null reference (Nothing in Visual Basic) if the frame started outside the plug-in area.
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.