vb.net設(shè)置windows焦點(diǎn)程序

給你個(gè)參考的例子，窗體打開(kāi)時(shí)可能大小有變化，軟件名可能有變化

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先加個(gè)控件ListBox1，運(yùn)行后雙擊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中頁(yè)面初期顯示時(shí)按下enter鍵讓焦點(diǎn)在五個(gè)textbox控件上順序移動(dòng)該怎么辦？求大神指點(diǎn)，謝謝！

這樣不好，應(yīng)該使用 Table 鍵，按照 Table 鍵順序來(lái)切換。因?yàn)榛剀?chē)往往用來(lái)確定你要按下頁(yè)面的確定按鈕。如果非要使用回車(chē)：

Private Sub 文本框按下回車(chē)鍵(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 給其他程序焦點(diǎn)

Public RunProcess As Process

RunProcess.start("djiwqjidjwqi")

AppActivate(RunProcess.Id())

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