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Keyboard Class

Provides properties for accessing the current state of the keyboard, such as what keys are currently pressed, and provides a method to send keystrokes to the active window.


Namespace:  Microsoft.VisualBasic.Devices
Assembly:  Microsoft.VisualBasic (in Microsoft.VisualBasic.dll)

[HostProtectionAttribute(SecurityAction.LinkDemand, Resources = HostProtectionResource.ExternalProcessMgmt)]
public class Keyboard

The Keyboard type exposes the following members.

Public methodKeyboardInitializes a new instance of the Keyboard class.

Public propertyAltKeyDownGets a Boolean indicating if the ALT key is down.
Public propertyCapsLockGets a Boolean indicating if CAPS LOCK is turned on.
Public propertyCtrlKeyDownGets a Boolean indicating if a CTRL key is down.
Public propertyNumLockGets a Boolean indicating if the NUM LOCK key is on.
Public propertyScrollLockGets a Boolean indicating whether the SCROLL LOCK key is on.
Public propertyShiftKeyDownGets a Boolean indicating if a SHIFT key is down.

Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodSendKeys(String)Sends one or more keystrokes to the active window, as if typed on the keyboard.
Public methodSendKeys(String, Boolean)Sends one or more keystrokes to the active window, as if typed on the keyboard.
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)

The My.Computer.Keyboard object provides an interface to the computer's keyboard. The properties of the My.Computer.Keyboard provide information about the state of several special keys. The My.Computer.Keyboard.SendKeys method lets you send keys to the active window as if they have been typed at the keyboard.


The following table lists examples of tasks involving the My.Computer.Keyboard object.

Availability by Project Type

Project type


Windows Application


Class Library


Console Application


Windows Control Library


Web Control Library


Windows Service


Web Site



The HostProtectionAttribute attribute applied to this type or member has the following Resources property value: Resources. The HostProtectionAttribute does not affect desktop applications (which are typically started by double-clicking an icon, typing a command, or entering a URL in a browser). For more information, see the HostProtectionAttribute class or SQL Server Programming and Host Protection Attributes.

This example uses the My.Computer.Keyboard.CtrlKeyDown property to determine if the computer's CTRL key is pressed.

If My.Computer.Keyboard.CtrlKeyDown Then
    MsgBox("CTRL key down")
    MsgBox("CTRL key up")
End If

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

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