VB2008里的设置：
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项目属性-应用程序-生成单个实例应用程序
Sub Main()
Dim thr As Thread
For Pi As Integer=0 To 4 //启用5线程
MulParams =Pi vbTab sFile vbTab dFile vbTab 1 vbTab DelN vbTab cr vbTab cg vbTab cb vbTab IndexI
GlobalParamas(pi)=MulParams .Split(vbTab)
thr=New Thread(AddressOf MyMulThreadCaller)
thr.Start() //启动多线程进程
Application.DoEvents
Next
End Sub
两个方法
1.
要接收的窗口先使用FindWindow这个api获得句柄
调用SetForegroundWindow使其获得焦点并选中
调用.net方法：SendKeys.Send方法发送
2.使用API的SendInput
多线程一般是不推荐用的，因为线程之间如果有共享资源的话会引起竞争，需要加锁处理；而且线程间没有时序关系，所以你在调试中可能会出现异步处理结束顺序与开始处理顺序不一致的情况（我在调试中已经发现该问题）。
针对你提出的这个问题，采用了多线程处理，利用的是BackgroundWorker也就是异步处理控件进行了处理。
代码已经经过调试通过。欢迎交流，如有问题，留下QQ或其他联系方式。
代码如下，并附程序截图。
‘---------------------------------------------------
Imports System.ComponentModel '导入异步控件命名空间
Public Class Form1
Private howmany As Integer = 10
Private AnalysisNumber(0 To howmany - 1) As BackgroundWorker
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
ListBox1.Items.Clear()
creatNewBackgroundWorker()
addHandle()
startWork()
End Sub
Private Sub creatNewBackgroundWorker()
For i As Integer = 0 To AnalysisNumber.Length - 1
AnalysisNumber(i) = New BackgroundWorker
Next
End Sub
Private Sub addHandle()
For i As Integer = 0 To AnalysisNumber.Length - 1
AddHandler AnalysisNumber(i).DoWork, AddressOf AnalysisNumber_DoWork
AddHandler AnalysisNumber(i).RunWorkerCompleted, AddressOf AnalysisNumber_RunWorkerCompleted
Next
End Sub
Private Sub startWork()
For i As Integer = 0 To 9
Dim temp(0 To 9) As Integer
For j As Integer = 1 To 10
temp(j - 1) = 10 * i + j
Next
AnalysisNumber(i).RunWorkerAsync(temp)
Next
End Sub
Private Sub AnalysisNumber_DoWork(ByVal sender As Object, ByVal e As System.ComponentModel.DoWorkEventArgs)
Dim data As Integer()
data = CType(e.Argument, Integer())
Dim temp As Integer
For i As Integer = 0 To data.Length - 1
temp = data(i)
data(i) = temp * temp
Next
e.Result = data
End Sub
Private Sub AnalysisNumber_RunWorkerCompleted(ByVal sender As Object, ByVal e As System.ComponentModel.RunWorkerCompletedEventArgs)
Dim data As Integer()
data = CType(e.Result, Integer())
For i As Integer = 0 To data.Length - 1
ListBox1.Items.Add(data(i))
Next
End Sub
End Class
调用 2.exe 用 shell 方法就可以了.不用多说.
至于检测 5个 2.exe 是否全都结束的方法,可以在 1.exe 中添加1个TIMER ,设定每隔1秒遍历系统进程表.]
找出系统进程中 2.exe 的个数,若为 0个 则显示"处理完成"
遍历进程需要调用API：
Declare Function CreateToolhelpSnapshot Lib "kernel32" Alias "CreateToolhelp32Snapshot" (ByVal lFlags As Long, ByVal lProcessID As Long) As Long
Declare Function ProcessFirst Lib "kernel32" Alias "Process32First" (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long
Declare Function ProcessNext Lib "kernel32" Alias "Process32Next" (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long
Declare Function TerminateProcess Lib "kernel32" (ByVal hProcess As Long, ByVal uExitCode As Long) As Long
Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Public Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal hwnd As Long, ByVal lpOperation As String, ByVal lpFile As String, ByVal lpParameters As String, ByVal lpDirectory As String, ByVal nShowCmd As Long) As Long
Const MAX_PATH As Integer = 260
Type PROCESSENTRY32
dwSize As Long
cntUsage As Long
th32ProcessID As Long
th32DefaultHeapID As Long
th32ModuleID As Long
cntThreads As Long
th32ParentProcessID As Long
pcPriClassBase As Long
dwFlags As Long
szExeFile As String * MAX_PATH
End Type
Const TH32CS_SNAPheaplist = H1
Const TH32CS_SNAPPROCESS = H2
Const TH32CS_SNAPthread = H4
Const TH32CS_SNAPmodule = H8
Public Const TH32CS_SNAPall = TH32CS_SNAPPROCESS + TH32CS_SNAPheaplist + TH32CS_SNAPthread + TH32CS_SNAPmodule
'下面的"GetCount" 函数用于返回 2.exe 的个数:
Public Function GetCount()
Dim i As Long, lPid As Long
Dim k As Long
Dim Proc As PROCESSENTRY32
Dim hSnapShot As Long
hSnapShot = CreateToolhelpSnapshot(TH32CS_SNAPall, 0) '获得进程“快照”的句柄
Proc.dwSize = Len(Proc)
lPid = ProcessFirst(hSnapShot, Proc) '获取第一个进程的PROCESSENTRY32结构信息数据
i = 0
k = 0
Do While lPid 0
If InStr(1, Proc.szExeFile, "2.exe", vbTextCompare) 0 Then
k = k + 1
End If
i = i + 1
lPid = ProcessNext(hSnapShot, Proc) '循环获取下一个进程的PROCESSENTRY32结构信息数据
Loop
CloseHandle hSnapShot '关闭进程“快照”句柄
IsDone = k
End Function
vs里的项目管理结构是：
方案 soluotion
+---- 多个项目（project, 包括vb, vc, c#, web, asp.net， lib ...）
+------多个项(Item, 包括项目中的一切内容、文件)
因此您可以新建一个方案，在方案下可以新建多个项目，多个类型可以共存于同一个解决方案。
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