InputManager.PreNotifyInput InputManager.PreNotifyInput InputManager.PreNotifyInput InputManager.PreNotifyInput Event

Definition

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;
member this.PreNotifyInput : System.Windows.Input.NotifyInputEventHandler 
Public Custom Event PreNotifyInput As NotifyInputEventHandler 
Attributes

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.

Security

UIPermission
for adding or removing an event handler. Associated enumerations: Unrestricted

Applies to

See also