The InputManager class is responsible for coordinating all of the input systems in WPF.

A filter is any code that listens to PreProcessInput or PostProcessInput. Filters can modify the input staging area.

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

The InputManager controls the input staging area. The input staging area processes input into Windows Presentation Foundation (WPF) events.

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.

System..::.Object
  System.Windows.Threading..::.DispatcherObject
    System.Windows.Input..::.InputManager

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

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

Reference