首先通过CreateToolhelp32Snapshot函数创建一个进程的快照，然后通过调用Process32First使用快照返回的句柄对进程进行遍历，相关的信息存放在PROCESSENTRY32结构类型的实例中，然后显示出来。



Winxp+vb6+sp6

代码如下：

Private Declare Function CreateToolhelp32Snapshot Lib "kernel32" (ByVal dwFlags As Long, ByVal th32ProcessID As Long) As Long

Private Declare Function Process32First Lib "kernel32" (ByVal hSnapshot As Long, lppe As PROCESSENTRY32) As Long

Private Declare Function Process32Next Lib "kernel32" (ByVal hSnapshot As Long, lppe As PROCESSENTRY32) As Long

Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long



Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, _

ByVal blnheritHandle As Long, ByVal dwAppProcessId As Long) As Long



Private Declare Function TerminateProcess Lib "kernel32" (ByVal ApphProcess As Long, _

ByVal uExitCode As Long) As Long



Private 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 * 1024

End Type



Const TH32CS_SNAPHEAPLIST = &H1

Const TH32CS_SNAPPROCESS = &H2

Const TH32CS_SNAPTHREAD = &H4

Const TH32CS_SNAPMODULE = &H8

Const TH32CS_SNAPALL = (TH32CS_SNAPHEAPLIST Or TH32CS_SNAPPROCESS Or TH32CS_SNAPTHREAD Or TH32CS_SNAPMODULE)

Const TH32CS_INHERIT = &H80000000

'添加listview控件,3个按钮

'删除listview中选定的进程

Private Sub Command2_Click()

If MsgBox("你想删除 " & ListView1.SelectedItem.SubItems(2) & " 进程?", vbYesNo + vbQuestion) <> vbYes Then

Exit Sub

End If



Dim mProcID As Long

mProcID = OpenProcess(1&, -1&, ListView1.SelectedItem)

TerminateProcess mProcID, 0&

DoEvents

ListView1.ListItems.Remove (ListView1.SelectedItem.Index)

ListView1.Refresh

End Sub

'得到进程填充listview

Private Sub Command1_Click()

Dim my As PROCESSENTRY32

Dim l As Long

Dim l1 As Long

Dim mlistitem As ListItem



' List1.Clear

l = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0)

If l Then

my.dwSize = 1060

If (Process32First(l, my)) Then '遍历第一个进程

Do

Set mlistitem = ListView1.ListItems.Add(, , my.th32ProcessID)

mlistitem.SubItems(1) = my.th32ParentProcessID

mlistitem.SubItems(2) = my.szExeFile

Loop Until (Process32Next(l, my) < 1) '遍历所有进程知道返回值为False

End If

l1 = CloseHandle(l)

End If

End Sub



Private Sub Form_Load()

ListView1.ListItems.Clear

ListView1.ColumnHeaders.Clear

ListView1.FullRowSelect = True

ListView1.ColumnHeaders.Add , , "Process ID", 1500

ListView1.ColumnHeaders.Add , , "Process Parent ID", (1500)

ListView1.ColumnHeaders.Add , , "Name", (Me.Width - 3200)

ListView1.View = lvwReport

End Sub



'循环检测进程中是否有指定进程，如果有，关闭，如果没有，启动一个程序

Private Sub Command3_Click()

Dim my As PROCESSENTRY32

Dim l As Long

Dim l1 As Long

Dim flag As Boolean

Dim mName As String

Dim i As Integer



l = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0)

If l Then

my.dwSize = 1060

If (Process32First(l, my)) Then '遍历第一个进程

Do

i = InStr(1, my.szExeFile, Chr(0))

mName = LCase(Left(my.szExeFile, i - 1))

If mName = "winword.exe" Then

PID = my.th32ProcessID

pnam