Lister les processus actifs avec les api

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Contenu du snippet

Cette fonction, avec la valeur 0 renvoie le nb de process actifs
Avec une valeur comprise entre 1 et le nb de processus, les énumerrent et renvoie le chemin ou le nom d' un de ces processus.
Sinon, rien.

Source / Exemple : 


Private Declare Function _
CloseHandle Lib "Kernel32.dll" (ByVal _
    Handle As Long) As Long
Private Declare Function _
OpenProcess Lib "Kernel32.dll" (ByVal _
    dwDesiredAccessas As Long, _
    ByVal bInheritHandle As Long, _
    ByVal dwProcId As Long) As Long
Private Declare Function _
EnumProcesses Lib "PSAPI.DLL" (ByRef _
    lpidProcess As Long, ByVal cb As Long, _
    ByRef cbNeeded As Long) As Long
Private Declare Function _
GetModuleFileNameExA Lib "PSAPI.DLL" (ByVal _
    bhProcess As Long, _
    ByVal hModule As Long, ByVal _
    ModuleName As String, _
    ByVal nSize As Long) As Long
Private Declare Function _
EnumProcessModules Lib "PSAPI.DLL" (ByVal _
    hProcess As Long, ByRef _
    lphModule As Long, ByVal cb As Long, ByRef _
    cbNeeded As Long) As Long

Private Const PROCESS_QUERY_INFORMATION = 1024
Private Const PROCESS_VM_READ = 16
Private Const MAX_PATH = 260

Private Type PROCESS_MEMORY_COUNTERS
    cb As Long
    PageFaultCount As Long
    PeakWorkingSetSize As Long
    WorkingSetSize As Long
    QuotaPeakPagedPoolUsage As Long
    QuotaPagedPoolUsage As Long
    QuotaPeakNonPagedPoolUsage As Long
    QuotaNonPagedPoolUsage As Long
    PagefileUsage As Long
    PeakPagefileUsage As Long
End Type
Private Type PROCESSENTRY32
    dwSize As Long
    cntUsage As Long
    th32ProcessID As Long ' Le processus
    th32DefaultHeapID As Long
    th32ModuleID As Long ' exe associé
    cntThreads As Long
    th32ParentProcessID As Long
    pcPriClassBase As Long
    dwFlags As Long
    szExeFile As String * 260
End Type

Private Function Processus(ByVal _
ID As Integer) As String

On Error Resume Next

Dim booResult As Boolean
Dim lngLength As Long
Dim lngProcessID As Long
Dim strProcessName As String
Dim lngSnapHwnd As Long
Dim udtProcEntry As PROCESSENTRY32
Dim lngCBSize As Long
Dim lngCBSizeReturned As Long
Dim lngNumElements As Long
Dim lngProcessIDs() As Long
Dim lngCBSize2 As Long
Dim lngModules(1 To 200) As Long
Dim lngReturn As Long
Dim strModuleName As String
Dim lngSize As Long
Dim lngHwndProcess As Long
Dim lngLoop As Long
Dim pmc As PROCESS_MEMORY_COUNTERS
Dim strProcName, strProcName2 As String
Dim NbProc, ListeProc(1 To 10000) As String
NbProc = 0

booResult = False

' nom de Explorer
EXEName = "explorer.exe"
EXEName = UCase$(Trim$(EXEName))
lngLength = Len(EXEName)

lngCBSize = 8
lngCBSizeReturned = 96

Do While lngCBSize <= lngCBSizeReturned
       DoEvents
       'Incremente la taille
       lngCBSize = lngCBSize * 2
       'Loue la mémoire
       ReDim lngProcessIDs(lngCBSize / 4) As Long
       'Prends l' ID du processus
lngReturn = EnumProcesses(lngProcessIDs(1), lngCBSize, lngCBSizeReturned)
 Loop

'Compte les processus
lngNumElements = lngCBSizeReturned / 4
For lngLoop = 1 To lngNumElements
        DoEvents
        'Donne le handle du processus et l' ouvre

lngHwndProcess = OpenProcess(PROCESS_QUERY_INFORMATION Or PROCESS_VM_READ, 0, lngProcessIDs(lngLoop))
        
        If lngHwndProcess <> 0 Then

lngReturn = EnumProcessModules(lngHwndProcess, lngModules(1), 200, lngCBSize2)
            
            If lngReturn <> 0 Then
                NbProc = NbProc + 1
                strModuleName = Space(MAX_PATH)
                lngSize = 500
                'Prend le nom du processus

lngReturn = GetModuleFileNameExA(lngHwndProcess, lngModules(1), strModuleName, lngSize)
                
                'Enlève les espaces
                strProcessName = Left(strModuleName, lngReturn)
                ListeProc(NbProc) = strProcessName
            End If
        End If
       'Ferme les handles du processus
       lngReturn = CloseHandle(lngHwndProcess)
       DoEvents
Next

If ID = 0 Then
    Processus = NbProc
ElseIf ID > 0 And ID <= NbProc Then
    Processus = ListeProc(ID)
Else
    Processus = ""
End If

End Function

Sub Form_Load() 'pour l' appeller

'Si i=0 --> variable= nombre de procesus
'Sinon --> variable= nom ou chemin d' accès du processus "i"

variable = Processus(i)
MsgBox (variable)

End Sub

Conclusion :


Je l' ai testé sous Win XP. Il parait que çà marche pas sous Win9x.

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