Wieder Parameter in VB6

[Seidl]

Wenn's nur darum geht, zu erkennen ob eine Anwendung läuft, bitte sehr:

'################################################# ##################
Const MAX_PATH& = 260

Declare Function TerminateProcess Lib "kernel32" (ByVal ApphProcess As Long, ByVal uExitCode As Long) As Long
Declare Function ProcessFirst Lib "kernel32" Alias "Process32First" (ByVal hSnapshot As Long, uProcess As PROCESSENTRY32) As Long
Declare Function ProcessNext Lib "kernel32" Alias "Process32Next" (ByVal hSnapshot As Long, uProcess As PROCESSENTRY32) As Long
Declare Function CreateToolhelpSnapshot Lib "kernel32" Alias "CreateToolhelp32Snapshot" (ByVal lFlags As Long, lProcessID As Long) As Long
Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long

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 * MAX_PATH
End Type

Public Function ApplicationRunning(ApplicationPath As String) As Boolean
' Funktion
' Überprüft ob eine Application ausgeführt wird. Die Applikation wird
' anhand ihrer Executable erkannt (z.B. MYAPP.EXE).
' IN
' ApplicationPath Pfad zur Executable. Relevant ist aber nur die Executable selbst.
' RETURN
' ApplicationRunning TRUE wenn die Applikation bereits läuft, sonst FALSE.
On Local Error GoTo Trap
Const PROCESS_ALL_ACCESS = 0
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
appCount = 0
ApplicationRunning = False
Const TH32CS_SNAPPROCESS As Long = 2&
uProcess.dwSize = Len(uProcess)
hSnapshot = CreateToolhelpSnapshot(TH32CS_SNAPPROCESS, 0&)
rProcessFound = ProcessFirst(hSnapshot, uProcess)
Do While rProcessFound And Not ApplicationRunning
i = InStr(1, uProcess.szexeFile, Chr(0))
szExename = LCase$(Left$(uProcess.szexeFile, i - 1))
If Right$(szExename, Len(ApplicationPath)) = LCase$(ApplicationPath) Then
ApplicationRunning = True
Else
rProcessFound = ProcessNext(hSnapshot, uProcess)
End If
Loop
Call CloseHandle(hSnapshot)
Trap:
End Function
'################################################# ##################

Wenn das ausgeführte Programm nicht sichtbar sein soll, dann musst du nur als "Startup Object" eine Prozedur anstatt eines Formulars angeben.