TouchEventArgs Class

.NET Framework (current version)
 

Provides data for touch input events.

Namespace:   System.Windows.Input
Assembly:  PresentationCore (in PresentationCore.dll)

System.Object
  System.EventArgs
    System.Windows.RoutedEventArgs
      System.Windows.Input.InputEventArgs
        System.Windows.Input.TouchEventArgs

public class TouchEventArgs : InputEventArgs

NameDescription
System_CAPS_pubmethodTouchEventArgs(TouchDevice, Int32)

Initializes a new instance of the TouchEventArgs class.

NameDescription
System_CAPS_pubpropertyDevice

Gets the input device that initiated this event.(Inherited from InputEventArgs.)

System_CAPS_pubpropertyHandled

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.)

System_CAPS_pubpropertyOriginalSource

Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class.(Inherited from RoutedEventArgs.)

System_CAPS_pubpropertyRoutedEvent

Gets or sets the RoutedEvent associated with this RoutedEventArgs instance. (Inherited from RoutedEventArgs.)

System_CAPS_pubpropertySource

Gets or sets a reference to the object that raised the event. (Inherited from RoutedEventArgs.)

System_CAPS_pubpropertyTimestamp

Gets the time when this event occurred. (Inherited from InputEventArgs.)

System_CAPS_pubpropertyTouchDevice

Gets the touch that generated the event.

NameDescription
System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetIntermediateTouchPoints(IInputElement)

Returns all touch points that were collected between the most recent and previous touch events.

System_CAPS_pubmethodGetTouchPoint(IInputElement)

Returns the current position of the touch device relative to the specified element.

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_protmethodInvokeEventHandler(Delegate, Object)

Invokes event handlers in a type-specific way, which can increase event system efficiency.(Overrides InputEventArgs.InvokeEventHandler(Delegate, Object).)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_protmethodOnSetSource(Object)

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.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

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.

private void canvas_TouchUp(object sender, TouchEventArgs e)
{
    Canvas _canvas = (Canvas)sender as Canvas;
    if (_canvas != null && e.TouchDevice.Captured == _canvas)
    {
        _canvas.ReleaseTouchCapture(e.TouchDevice);
    }
}

.NET Framework
Available since 4.0

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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