vb.net设置windows焦点程序

给你个参考的例子，窗体打开时可能大小有变化，软件名可能有变化

创新互联建站专业为企业提供藁城网站建设、藁城做网站、藁城网站设计、藁城网站制作等企业网站建设、网页设计与制作、藁城企业网站模板建站服务，十载藁城做网站经验，不只是建网站，更提供有价值的思路和整体网络服务。

先加个控件ListBox1，运行后双击ListBox1上程序名

Public Class Form1

Public myProcess() As Process

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

Dim myProcesses() As Process = Process.GetProcesses()

Dim jh As New ArrayList

For Each bs As Process In myProcesses

If CInt(bs.MainWindowHandle) 0 Then

ListBox1.Items.Add(bs.ProcessName)

jh.Add(bs)

End If

Next

ReDim myProcess(jh.Count - 1)

jh.CopyTo(myProcess)

End Sub

Declare Function ShowWindow Lib "user32" Alias "ShowWindow" (ByVal hwnd As Integer, ByVal nCmdShow As Long) As Integer

Private Sub ListBox1_MouseDoubleClick(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles ListBox1.MouseDoubleClick

Dim a As Process = myProcess(ListBox1.SelectedIndex)

Try

Dim dd = ShowWindow(a.MainWindowHandle, H1)

AppActivate(a.Id)

Catch ex As Exception

End Try

End Sub

End Class

VB.NET中页面初期显示时按下enter键让焦点在五个textbox控件上顺序移动该怎么办？求大神指点，谢谢！

这样不好，应该使用 Table 键，按照 Table 键顺序来切换。因为回车往往用来确定你要按下页面的确定按钮。如果非要使用回车：

Private Sub 文本框按下回车键(sender As Object, e As KeyEventArgs) Handles TextBox3.KeyDown, TextBox2.KeyDown, TextBox1.KeyDown

If e.KeyCode = Keys.Enter Then

Select Case sender.name

Case "TextBox1"

TextBox2.Focus()

Case "TextBox2"

TextBox3.Focus()

Case "TextBox3"

TextBox1.Focus()

End Select

End If

End Sub

VB.Net 给其他程序焦点

Public RunProcess As Process

RunProcess.start("djiwqjidjwqi")

AppActivate(RunProcess.Id())

本文标题：vb.net焦点切换 vb设置焦点
分享链接：http://myzitong.com/article/dosdeic.html