Provides data for touch input events.
Inheritance Hierarchy
Namespace:
System.Windows.Input
SystemObject
SystemEventArgs
System.WindowsRoutedEventArgs
System.Windows.InputInputEventArgs
System.Windows.InputTouchEventArgs
SystemEventArgs
System.WindowsRoutedEventArgs
System.Windows.InputInputEventArgs
System.Windows.InputTouchEventArgs
Assembly: PresentationCore (in PresentationCore.dll)
Syntax
Public Class TouchEventArgs _
Inherits [%$TOPIC/dd991211_en-us_VS_110_2_0_0_0_0%]public class TouchEventArgs : [%$TOPIC/dd991211_en-us_VS_110_2_0_1_0_0%]public ref class TouchEventArgs : public [%$TOPIC/dd991211_en-us_VS_110_2_0_2_0_0%]type TouchEventArgs =
class
inherit [%$TOPIC/dd991211_en-us_VS_110_2_0_3_0_0%]
endThe TouchEventArgs type exposes the following members.
Constructors
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| Name | Description | |
|---|---|---|
.gif) | TouchEventArgs | Initializes a new instance of the TouchEventArgs class. |
Properties
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| Name | Description | |
|---|---|---|
.gif) | Device | Gets the input device that initiated this event. (Inherited from InputEventArgs.) |
|
| Handled | Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route. (Inherited from RoutedEventArgs.) |
|
| OriginalSource | Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. (Inherited from RoutedEventArgs.) |
|
| RoutedEvent | Gets or sets the RoutedEvent associated with this RoutedEventArgs instance. (Inherited from RoutedEventArgs.) |
|
| Source | Gets or sets a reference to the object that raised the event. (Inherited from RoutedEventArgs.) |
|
| Timestamp | Gets the time when this event occurred. (Inherited from InputEventArgs.) |
|
| TouchDevice | Gets the touch that generated the event. |
Methods
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| Name | Description | |
|---|---|---|
|
| Equals(Object) | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
.gif) | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
|
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
|
| GetIntermediateTouchPoints | Returns all touch points that were collected between the most recent and previous touch events. |
|
| GetTouchPoint | Returns the current position of the touch device relative to the specified element. |
|
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
|
| InvokeEventHandler | Invokes event handlers in a type-specific way, which can increase event system efficiency. (Overrides InputEventArgsInvokeEventHandler(Delegate, Object).) |
|
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
|
| OnSetSource | When overridden in a derived class, provides a notification callback entry point whenever the value of the Source property of an instance changes. (Inherited from RoutedEventArgs.) |
|
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
Remarks
Examples
The following example handles the TouchUp events that occur on a Canvas. It checks the Captured property to verify that the device that raised the event is captured to the Canvas. If it is, the TouchDevice is released.
This example is part of a larger example that is available in the TouchDevice class overview.
' Touch Up
Private Sub canvas_TouchUp(ByVal sender As System.Object, ByVal e As System.Windows.Input.TouchEventArgs)
Dim _canvas As Canvas = CType(sender, Canvas)
If (_canvas IsNot Nothing AndAlso e.TouchDevice.Captured Is _canvas) Then
_canvas.ReleaseTouchCapture(e.TouchDevice)
End If
End Subprivate void canvas_TouchUp(object sender, TouchEventArgs e)
{
Canvas _canvas = (Canvas)sender as Canvas;
if (_canvas != null && e.TouchDevice.Captured == _canvas)
{
_canvas.ReleaseTouchCapture(e.TouchDevice);
}
}
Platforms
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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