如何在VB.NET中切换Caps Lock？

使用VB.NET，如何切换Caps Lock的状态？

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来自： http : //www.vbforums.com/showthread.PHP?referrerid= 61394& t=537891

Imports System.Runtime.InteropServices Public Class Form2 Private Declare Sub keybd_event Lib "user32" ( _ ByVal bVk As Byte,_ ByVal bScan As Byte,_ ByVal dwFlags As Integer,_ ByVal dwExtraInfo As Integer _ ) Private Const VK_CAPITAL As Integer = &H14 Private Const KEYEVENTF_EXTENDEDKEY As Integer = &H1 Private Const KEYEVENTF_KEYUP As Integer = &H2 Private Sub Button1_Click( _ ByVal sender As System.Object,_ ByVal e As System.EventArgs _ ) Handles Button1.Click ' Toggle CapsLock ' Simulate the Key Press keybd_event(VK_CAPITAL,&H45,KEYEVENTF_EXTENDEDKEY Or 0,0) ' Simulate the Key Release keybd_event(VK_CAPITAL,KEYEVENTF_EXTENDEDKEY Or KEYEVENTF_KEYUP,0) End Sub End Class

试试这个 ：

Public Class Form1 Private Declare Sub keybd_event Lib "user32" (ByVal bVk As Byte,ByVal bScan As Byte,ByVal dwFlags As Integer,ByVal dwExtraInfo As Integer) Private Sub Form1_Load(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles MyBase.Load Call keybd_event(System.Windows.Forms.Keys.CapsLock,&H14,1,0) Call keybd_event(System.Windows.Forms.Keys.CapsLock,3,0) End Sub End Class

我用这个

Private Declare Sub keybd_event Lib "user32" (ByVal bVk As Byte,ByVal dwExtraInfo As Integer) Private Const KEYEVENTF_EXTENDEDKEY As Integer = &H1 Private Const KEYEVENTF_KEYUP As Integer = &H2 'put this where you want to turn caps lock on or off keybd_event(VK_NUmlock,0) keybd_event(VK_NUmlock,0)