---
title: IKeymanControl Interface
---

## Introduction

The `IKeymanControl` interface controls the operation of Keyman Engine
and provides methods to trigger Keyman Engine's user interface.

## Interface Hierarchy

`IDispatch`

> [`IKeymanObject`](../IKeymanObject)
>
> > **`IKeymanControl`**


## Properties

[`ActiveLanguage`](ActiveLanguage)
:   Returns or sets the currently active keyboard + language.

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[`LastActiveWindow`](LastActiveWindow) <span class="readonly">read only</span>
:   Returns the last active window handle, excluding Keyman windows such
    as the On Screen Keyboard.

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[`LastFocusWindow`](LastFocusWindow) <span class="readonly">read only</span>
:   Returns the last focus window handle, irrespective of process.

## Methods

[`IsConfigurationOpen()`](IsConfigurationOpen)
:   Returns `True` if Keyman Configuration is currently running.

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[`IsKeymanRunning()`](IsKeymanRunning)
:   Returns `True` if Keyman Engine is currently running.

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[`IsOnlineUpdateCheckOpen()`](IsOnlineUpdateCheckOpen)
:   Returns `True` if the Keyman for Windows online update check tool is
    currently running.

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[`IsTextEditorOpen()`](IsTextEditorOpen)
:   Returns `True` if the Keyman for Windows text editor is currently
    running.

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[`IsVisualKeyboardOpen()`](IsVisualKeyboardOpen)
:   Returns `True` if the on screen keyboard is running.

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[`OpenConfiguration()`](OpenConfiguration)
:   Starts Keyman Configuration.

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[`OpenDiagnostics()`](OpenDiagnostics)
:   Opens the Keyman diagnostics tool.

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[`OpenHelp()`](OpenHelp)
:   Opens Keyman for Windows help at the specific topic.

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[`OpenTextEditor()`](OpenTextEditor)
:   Opens Keyman for Windows text editor.

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[`OpenUpdateCheck()`](OpenUpdateCheck)
:   Opens Keyman for Windows online update check tool.

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[`ShowKeyboardWelcome()`](ShowKeyboardWelcome)
:   Loads the welcome.htm file in a window for the selected keyboard.

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[`StartKeyman()`](StartKeyman)
:   Starts Keyman Engine, if it isn't already running.

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[`StartVisualKeyboard()`](StartVisualKeyboard)
:   Starts the on screen keyboard, if it isn't already visible.

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[`StopKeyman()`](StopKeyman)
:   Stops Keyman Engine.

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[`StopVisualKeyboard()`](StopVisualKeyboard)
:   Stops the on screen keyboard.