PreProcessInputEventHandler PreProcessInputEventHandler PreProcessInputEventHandler PreProcessInputEventHandler Delegate


Represents the method that will handle the PreProcessInput event.

public delegate void PreProcessInputEventHandler(System::Object ^ sender, PreProcessInputEventArgs ^ e);
public delegate void PreProcessInputEventHandler(object sender, PreProcessInputEventArgs e);
type PreProcessInputEventHandler = delegate of obj * PreProcessInputEventArgs -> unit
Public Delegate Sub PreProcessInputEventHandler(sender As Object, e As PreProcessInputEventArgs)


Object Object Object Object

The source of the event.



The PreProcessInputEventHandler is used with the PreProcessInput event.

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.

Extension Methods

GetMethodInfo(Delegate) GetMethodInfo(Delegate) GetMethodInfo(Delegate) GetMethodInfo(Delegate)

Gets an object that represents the method represented by the specified delegate.

Applies to

See also