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vb.net键同时按下的简单介绍

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如何 在 vb.net 中 按下键盘A与W 两个按键组合时弹出 MsgBox("你按下了A+W键") ， 最好有例子程序 。楼上vb.net键同时按下的按了一次A+W后,接下来单按W键就会弹出信息框
Public Class Form1
Private Declare Function GetAsyncKeyState Lib "user32.dll" (ByVal keyCode As Integer) As Short
Private Sub Form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
If GetAsyncKeyState(Keys.A) And GetAsyncKeyState(Keys.W) Then
MsgBox("vb.net键同时按下你按下了A+W键")
End If
End Sub
End Class
按照顺序vb.net键同时按下的话,这样写:
Public Class Form1
Private Declare Function GetAsyncKeyState Lib "user32.dll" (ByVal keyCode As Integer) As Short
Private Sub Form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
【vb.net键同时按下的简单介绍】If GetAsyncKeyState(Keys.A) And e.KeyCode = Keys.W Then
MsgBox("vb.net键同时按下你按下了A+W键")
End If
End Sub
End Class
望采纳~
VB.net 怎么制作按键连发功能用API函数vb.net键同时按下，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F1vb.net键同时按下的实例vb.net键同时按下，各个按键对应vb.net键同时按下的虚拟键码vb.net键同时按下，要到网上查
vb.net的，按键连续触发事件，比如，按着键不放，音量增大 。1.定义变量记录键是否被按下vb.net键同时按下 ， 按下vb.net键同时按下的累计时间
Dim 按下A键As Boolean
Dim 按下A键时间 As Integer
2.添加一个TextBox1用于接收键盘事件 ， 或者直接用窗体的键盘事件(确保KeyPreview为True)
在KeyDown事件中添加如下代码vb.net键同时按下：
If e.Keycode = keys.A Then 按下A键 = True
在KeyUp事件中添加如下代码vb.net键同时按下：
If e.Keycode = keys.A Then 按下A键 = False
3.添加一个Timer1控件，调整Timer1的Interval来决定按键频率，记得要把Timer1.Enable开启
在Tick事件中添加如下代码：
If 按下A键 = True
按下A键时间+=1
Call 音量设置(按下A键时间 * 10)
End If
PS: 按下的秒数 = 按下A键时间*Timer1.Interval / 1000
vb.net键同时按下的介绍就聊到这里吧，感谢你花时间阅读本站内容，更多关于、vb.net键同时按下的信息别忘了在本站进行查找喔 。

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