MouseEventArgs Class


Provides data for mouse related that do not specifically involve mouse buttons or the mouse wheel, for example UIElement.MouseMove.GTMT

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

public class MouseEventArgs : InputEventArgs

System_CAPS_pubmethodMouseEventArgs(MouseDevice, Int32)

Initializes a new instance of the MouseEventArgs class using the specified MouseDevice and timestamp

System_CAPS_pubmethodMouseEventArgs(MouseDevice, Int32, StylusDevice)

Initializes a new instance of the MouseEventArgs class using the specified MouseDevice, timestamp, and StylusDevice.


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


Gets or sets a value that indicates the present state of the event handling for a as it travels the route. (Inherited from RoutedEventArgs.)GTMT


Gets the current state of the left mouse button.


Gets the current state of the middle mouse button.


Gets the mouse device associated with this event.


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


Gets the current state of the right mouse button.


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


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


Gets the stylus device associated with this event.


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


Gets the current state of the first extended mouse button.


Gets the state of the second extended mouse button.


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


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


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


Returns the position of the mouse pointer relative to the specified element.


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).)


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


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

This event data class is used with the following attached events.

This event data class is used with the following routed events. These forward the previously listed to make them more accessible to the general element model in WPF.GTMTGTMT

The attached events and the base element routed events share their event data, and the bubbling and tunneling versions of the routed events also share event data. This can affect the handled characteristics of the event as it travels the event route. For details, see Input Overview.

Other than the RoutedEventArgs properties that are relevant for all routed events, the most interesting properties of MouseEventArgs that you might use in a MouseEventHandler implementation are several properties that expose the current button state (such as LeftButton) and MouseDevice). MouseDevice is useful particularly because you can check Captured on it.

Note that events that specifically deal with mouse button events use a different event data class, MouseButtonEventArgs. The mouse button properties are available on MouseEventArgs in case there are input modes or interactions that involve the buttons even if you are handling a non-button event.

The Mouse class provides additional properties and methods for determining the state of the mouse.

Legacy Code Example

Code snippet is not found. Confirm that the code snippet name 'HOWDOI' is correct.

.NET Framework
Available since 3.0
Available since 2.0
Windows Phone Silverlight
Available since 7.0

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

Return to top
Was this page helpful?
(1500 characters remaining)
Thank you for your feedback
© 2015 Microsoft