Esempio di ciclo per verificare l’esistenza di un processo e killarlo:
Dim cnt As Integer ‘tentativi.
cnt = 10
Do While IsProcessRunning("nomeprocesso.exe") = True
If cnt = 0 Then
Exit Do
End If
KillProcess ("nomeprocesso.exe")
cnt = cnt – 1
Sleep (2000)
Loop
Verificare l’esistenza di un processo:
Option Explicit
Private Declare Function OpenProcess Lib "kernel32" ( _
ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Private Declare Function CloseHandle Lib "kernel32" ( _
ByVal hObject As Long) As Long
Private Declare Function EnumProcesses Lib "PSAPI.DLL" ( _
lpidProcess As Long, ByVal cb As Long, cbNeeded As Long) As Long
Private Declare Function EnumProcessModules Lib "PSAPI.DLL" ( _
ByVal hProcess As Long, lphModule As Long, ByVal cb As Long, lpcbNeeded As Long) As Long
Private Declare Function GetModuleBaseName Lib "PSAPI.DLL" Alias "GetModuleBaseNameA" ( _
ByVal hProcess As Long, ByVal hModule As Long, ByVal lpFileName As String, ByVal nSize As Long) As Long
Private Const PROCESS_VM_READ = &H10
Private Const PROCESS_QUERY_INFORMATION = &H400
Public Function IsProcessRunning(ByVal sProcess As String) As Boolean
Const MAX_PATH As Long = 260
Dim lProcesses() As Long, lModules() As Long, N As Long, lRet As Long, hProcess As Long
Dim sName As String
sProcess = UCase$(sProcess)
ReDim lProcesses(1023) As Long
If EnumProcesses(lProcesses(0), 1024 * 4, lRet) Then
For N = 0 To (lRet \ 4) – 1
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION Or PROCESS_VM_READ, 0, lProcesses(N))
If hProcess Then
ReDim lModules(1023)
If EnumProcessModules(hProcess, lModules(0), 1024 * 4, lRet) Then
sName = String$(MAX_PATH, vbNullChar)
GetModuleBaseName hProcess, lModules(0), sName, MAX_PATH
sName = Left$(sName, InStr(sName, vbNullChar) – 1)
If Len(sName) = Len(sProcess) Then
If sProcess = UCase$(sName) Then IsProcessRunning = True: Exit Function
End If
End If
End If
CloseHandle hProcess
Next N
End If
End Function
Killare un processo:
Public 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
Declare Function OpenProcess Lib "kernel32.dll" (ByVal dwDesiredAccess As Long, _
ByVal blnheritHandle As Long, ByVal dwAppProcessId As Long) As Long
Declare Function ProcessFirst Lib "kernel32.dll" Alias "Process32First" (ByVal hSnapshot As Long, _
uProcess As PROCESSENTRY32) As Long
Declare Function ProcessNext Lib "kernel32.dll" Alias "Process32Next" (ByVal hSnapshot As Long, _
uProcess As PROCESSENTRY32) As Long
Declare Function CreateToolhelpSnapshot Lib "kernel32.dll" Alias "CreateToolhelp32Snapshot" ( _
ByVal lFlags As Long, lProcessID As Long) As Long
Declare Function TerminateProcess Lib "kernel32.dll" (ByVal ApphProcess As Long, _
ByVal uExitCode As Long) As Long
Declare Function CloseHandle Lib "kernel32.dll" (ByVal hObject As Long) As Long
Public Sub KillProcess(NameProcess As String)
Const PROCESS_ALL_ACCESS = &H1F0FFF
Const TH32CS_SNAPPROCESS As Long = 2&
Dim uProcess As PROCESSENTRY32
Dim RProcessFound As Long
Dim hSnapshot As Long
Dim SzExename As String
Dim ExitCode As Long
Dim MyProcess As Long
Dim AppKill As Boolean
Dim AppCount As Integer
Dim i As Integer
Dim WinDirEnv As String
If NameProcess <> "" Then
AppCount = 0
uProcess.dwSize = Len(uProcess)
hSnapshot = CreateToolhelpSnapshot(TH32CS_SNAPPROCESS, 0&)
RProcessFound = ProcessFirst(hSnapshot, uProcess)
Do
i = InStr(1, uProcess.szexeFile, Chr(0))
SzExename = LCase$(Left$(uProcess.szexeFile, i – 1))
WinDirEnv = Environ("Windir") + "\"
WinDirEnv = LCase$(WinDirEnv)
If Right$(SzExename, Len(NameProcess)) = LCase$(NameProcess) Then
AppCount = AppCount + 1
MyProcess = OpenProcess(PROCESS_ALL_ACCESS, False, uProcess.th32ProcessID)
AppKill = TerminateProcess(MyProcess, ExitCode)
Call CloseHandle(MyProcess)
End If
RProcessFound = ProcessNext(hSnapshot, uProcess)
Loop While RProcessFound
Call CloseHandle(hSnapshot)
End If
End Sub
