VB.NET怎樣判斷一個(gè)應(yīng)用程序是否在運(yùn)行

用process.GetProcesses()

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或者process.GetProcessByid() 獲取進(jìn)程信息，

vb.net 怎么判斷當(dāng)前程序是否正在運(yùn)行？

Imports System.Runtime.InteropServices

Module Module1

Sub Main()

Dim instance As Process = RunningInstance()

If instance IsNot Nothing Then

ShowWindowAsync(instance.MainWindowHandle, 3) '調(diào)用api函數(shù)，正常顯示窗口

Return

End If

Dim F1 As New Form1

Application.Run(F1) '顯示窗體

End Sub

DllImport("User32.dll")

Public Function ShowWindowAsync(ByVal hWnd As System.IntPtr, ByVal cmdShow As Integer) As Boolean

End Function

Private Function RunningInstance() As Process '返回進(jìn)程中已經(jīng)打開的程序

Dim current As Process = Process.GetCurrentProcess()

Dim processes As Process() = Process.GetProcessesByName(current.ProcessName)

For Each process As Process In processes

If process.Id current.Id Then

If process.MainModule.FileName = current.MainModule.FileName Then

Return process

End If

End If

Next

Return Nothing

End Function

End Module

vb.net 程序啟動(dòng)問題~~~懂的來

打開VS.net

2008

,打開工程,點(diǎn)擊菜單項(xiàng)目

在點(diǎn)XX屬性,就可以看到啟動(dòng)對象,選擇相應(yīng)的啟動(dòng)模塊