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vb.net发送键盘信息 vb中的键盘事件

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VB.net 怎么制作按键连发功能用API函数，以下代码Private Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) As LongPrivate Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Private Declare Function SetLayeredWindowAttributes Lib "user32" (ByVal hwnd As Long, ByVal crKey As Long, ByVal bAlpha As Byte, ByVal dwFlags As Long) As LongPrivate Const WS_EX_LAYERED = H80000
Private Const GWL_EXSTYLE = (-20)
Private Const LWA_ALPHA = H2
Private Const LWA_COLORKEY = H1Private Declare Function SetWindowPos Lib "user32" (ByVal hwnd As Long, ByVal hWndInsertAfter As Long, ByVal X As Long, ByVal Y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long) As Long
Private Const HWND_TOPMosT = -1
Private Const SWP_NOMOVE = H2
Private Const SWP_NosIZE = H1
Private Declare Function GetForegroundWindow Lib "user32" () As Long
Private Declare Function PostMessage Lib "user32" Alias "PostMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Const WM_KEYDOWN = H100
Const WM_KEYUP = H101
Const WM_CHAR = H102
Const VK_F1 = H70
Private Sub SendF1(hwnd)'调用这个过程即可对目标窗体发送F1键
Call PostMessage(hwnd, WM_KEYDOWN, VK_F1, 0)
Call PostMessage(hwnd, WM_KEYUP, VK_F1, 0)
End Sub这里是发送F1的实例 ， 各个按键对应的虚拟键码，要到网上查
vb.net中使用sendkeys无效?vb.net中使用sendkeys无效，是因为窗口没有处于活动状态 。
VB6的SendKeys有时有些问题 ， 比如打开任务管理器，以下代码可以：
Sub main()
Dim WshShell As Object
Set WshShell = CreateObject("WScript.Shell")
WshShell.SendKeys "^ {ESC}"
End Sub
以下代码却不可以：
Sub main()
SendKeys "^ {ESC}"
End Sub
所以最好使用WScript.Shell中的SendKeys 。
vb.net 如何吧字符穿转换成键盘码（1）在Form1上布置一个Label，用来显示键盘码
（2）窗体代码如下
Imports System.Windows.Forms
Imports System.IO
Imports System.Net
Imports System.Windows.Forms
Imports System.IO
Imports System.Net
Public Class Form1
Private Sub Form1_Load(sender As Object,
e As EventArgs) Handles MyBase.Load
【vb.net发送键盘信息 vb中的键盘事件】KeyPreview = True
End Sub
Private Sub Form1_KeyDown(sender As Object,
e As KeyEventArgs) Handles MyBase.KeyDown
Label1.Text = e.KeyValue
End Sub
End Class
按键盘上的键 ， Label1将显示对应键的键盘码
请问VB.NET 如何利用PostMessage 向窗口的指定Edit发送信息你不用程序的情况能不能用TAB切换焦点 。如果这样不行的话你用程序控件是没用的 。
或都直接对第二个编辑框发送消息 。
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