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InputManager.PreNotifyInput Event

  • Reference

Definition

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

Occurs when the PreProcessInput handlers have finished processing the input, if the input was not canceled.

public:
 event System::Windows::Input::NotifyInputEventHandler ^ PreNotifyInput;
[add: System.Security.SecurityCritical]
[remove: System.Security.SecurityCritical]
public event System.Windows.Input.NotifyInputEventHandler PreNotifyInput;
public event System.Windows.Input.NotifyInputEventHandler PreNotifyInput;
[<add: System.Security.SecurityCritical>]
[<remove: System.Security.SecurityCritical>]
member this.PreNotifyInput : System.Windows.Input.NotifyInputEventHandler 
member this.PreNotifyInput : System.Windows.Input.NotifyInputEventHandler 
Public Custom Event PreNotifyInput As NotifyInputEventHandler

Event Type

NotifyInputEventHandler
Attributes
SecurityCriticalAttribute

Remarks

A monitor is any code that listens to PreNotifyInput or PostNotifyInput. Monitors cannot modify the input staging area.

The handlers attached to PreNotifyInput are invoked in reverse order so that handlers added by the users are invoked before handlers in the system.

Input is processed in WPF in the follow stages:

  1. Pre-process stage. The input manager raises the PreProcessInput event.

  2. Pre-notify stage. The input manager raises the PreNotifyInput event.

  3. The WPF input event or events are raised.

  4. Post-notify stage. The input manager raises the PostNotifyInput event.

  5. Post-process stage. The input manager raises the PostProcessInput event.

Applies to

See also