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PreProcessInputEventHandler Delegate

Represents the method that will handle the PreProcessInput event.

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

public delegate void PreProcessInputEventHandler(
	Object sender,
	PreProcessInputEventArgs e
)
In XAML, you can use delegates but you cannot define your own.

Parameters

sender
Type: System.Object

The source of the event.

e
Type: System.Windows.Input.PreProcessInputEventArgs

The event data.

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.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0

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