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
pname = mName
MsgBox "找到word"
If MsgBox("你想删除 " & mName & " 进程?", vbYesNo + vbQuestion) <> vbYes Then
Exit Sub
End If
Dim mProcID As Long
mProcID = OpenProcess(1&, -1&, PID)
TerminateProcess mProcID, 0&
flag = True
Exit Sub
Else
flag = False
End If
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
If flag = False Then
MsgBox "没有找到word"
Shell "c:\Program Files\Microsoft Office\Office\WINWORD.EXE", vbNormalFocus
End If
End Sub