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keybd_event (coredll)

coredll is for smart devices, not desktop Windows. Therefore, this information only applies to code using the .NET Compact Framework. To see if information for keybd_event in other DLLs exists, click on Find References to the right.

The keybd_event function synthesizes a keystroke. The system can use such a synthesized keystroke to generate a WM_KEYUP or WM_KEYDOWN message. The keyboard driver's interrupt handler calls the keybd_event function (from

C# Signature:

[DllImport("coredll.dll", EntryPoint="keybd_event", SetLastError=true)]
internal static extern void keybd_event(byte bVk, byte bScan, int dwFlags, int dwExtraInfo);

VB Signature:

Declare Sub keybd_event Lib "coredll.dll" (ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwFlags As Integer, ByVal dwExtraInfo As Integer)

User-Defined Types:


Alternative Managed API:

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Taken from openNetCF in OpenNETCF.Win32.Core

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Sample Code:

//This sample code is mainly used to turn the backlight on a WM device. The keystrokes can changed to use for other functions

    using System.Collections.Generic;
    using System.Text;
    using System.Runtime.InteropServices;

    namespace Win32
    public static class CoreDLL
        [DllImport("coredll.dll", EntryPoint = "keybd_event", SetLastError = true)]
        public static extern void keybd_event
        byte bVk,
        byte bScan,
        int dwFlags,
        int dwExtraInfo

        //To call the key stroke to turn on the Backlight.
        keybd_event(01, 01, 1, 1);

keybd_event on MSDN

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