前端之家收集整理的这篇文章主要介绍了
VB模拟进程管理器,
前端之家小编觉得挺不错的,现在分享给大家,也给大家做个参考。
VB模拟进程管理器:
'----------------------------------
Option Explicit
'获得进程的句柄
Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long,_
ByVal blnheritHandle As Long,ByVal dwAppProcessId As Long) As Long
'终止进程
Private Declare Function TerminateProcess Lib "kernel32" (ByVal ApPHProcess As Long,_
ByVal uExitCode As Long) As Long
'创建一个系统快照
Private Declare Function CreateToolhelp32Snapshot Lib "kernel32" _
(ByVal lFlags As Long,lProcessID As Long) As Long
'获得系统快照中的第一个进程的信息
Private Declare Function ProcessFirst Lib "kernel32" Alias "Process32First" _
(ByVal mSnapShot As Long,uProcess As PROCESSENTRY32) As Long
'获得系统快照中的下一个进程的信息
Private Declare Function ProcessNext Lib "kernel32" Alias "Process32Next" _
(ByVal mSnapShot As Long,uProcess As PROCESSENTRY32) 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 * 260&
End Type
Private Const TH32CS_SNAPPROCESS As Long = 2&
Dim mresult
Private Sub Form_Load()
'配置ListView控件。
lvwPRSS.ListItems.Clear
lvwPRSS.ColumnHeaders.Clear
lvwPRSS.ColumnHeaders.Add,"进程ID",1500
lvwPRSS.ColumnHeaders.Add,"进程名",5600
lvwPRSS.LabelEdit = lvwManual
lvwPRSS.FullRowSelect = True
lvwPRSS.HideSelection = False
lvwPRSS.HideColumnHeaders = False
lvwPRSS.View = lvwReport
End Sub
Private Sub doList()
Dim uProcess As PROCESSENTRY32
Dim mSnapShot As Long
Dim mName As String
Dim i As Integer
Dim mlistitem As ListItem
Dim msg As String
lvwPRSS.ListItems.Clear
DoEvents
'获取进程长度??
uProcess.dwSize = Len(uProcess)
'创建一个系统快照
mSnapShot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0&)
If mSnapShot Then
'获取第一个进程
mresult = ProcessFirst(mSnapShot,uProcess)
'失败则返回false
Do While mresult
'返回进程长度值+1,Chr(0)的作用:结束语,防止修改进程
i = InStr(1,uProcess.szexeFile,Chr(0))
'转换成小写
mName = LCase$(Left$(uProcess.szexeFile,i - 1))
'在listview控件中添加当前进程名
Set mlistitem = lvwPRSS.ListItems.Add(,Text:=uProcess.th32ProcessID)
'添加进程名
mlistitem.SubItems(1) = mName
'获取下一个进程
mresult = ProcessNext(mSnapShot,uProcess)
Loop
Else
ErrMsgProc (msg)
End If
cmdDelete.Enabled = (lvwPRSS.ListItems.Count > 0)
End Sub
Private Sub cmdRefresh_Click()
doList
End Sub
Private Sub Form_Activate()
doList
End Sub
Private Sub cmdExit_Click()
Unload Me
End Sub
'listview的大小随窗体变化
Private Sub Form_Resize()
'此处不能最小化,否则出错
lvwPRSS.Move 0,Me.ScaleWidth - cmdRefresh.Width,Me.ScaleHeight
cmdRefresh.Move lvwPRSS.Width - lvwPRSS.Left
cmdDelete.Move lvwPRSS.Width - lvwPRSS.Left
cmdExit.Move lvwPRSS.Width - lvwPRSS.Left
End Sub
'强行终止当前进程
Private Sub cmdDelete_Click()
If lvwPRSS.ListItems.Count = 0 Then
Exit Sub
End If
If MsgBox("真的终止" & lvwPRSS.Name & " 进程吗?",vbYesNo + vbQuestion) <> vbYes Then
Exit Sub
End If
Dim mProcID As Long
'打开进程
mProcID = OpenProcess(1&,-1&,lvwPRSS.SelectedItem)
'终止进程
TerminateProcess mProcID,0&
DoEvents
lvwPRSS.ListItems.Remove (lvwPRSS.SelectedItem.Index)
lvwPRSS.Refresh
End Sub
'显示错误信息
Sub ErrMsgProc(mMsg As String)
MsgBox mMsg & vbCrLf & Err.Number & Space(5) & Err.Description
End Sub