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10.09.2008 at 11:35AM PDT, ID: 23801929
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7.8

How Do I Kill a Proccess Using Visual Basic v6.0? ( Almost Solved )

Asked by KingSencat in Visual Basic Programming, VB Controls, VB Script

Hi experts, i am trying to terminate/kill a proccess using visual basic v6.0. The attached code below works but only if i provide the filename.exe of the window. The problem is that i want to KILL the proccess of a window by providing only the WindowTitle Name. See my example below:

>Let's say i do this..
KillApp "Notepad.exe" ' Filename.exe
>This will terminate all the notepad windows, something that i dont want!
>I need to do something like ...
KillApp "Today - Notepad" ' Window Caption
> I have tried with no luck, i dont get any error message just nothing happenes.

Can you help me please?Start Free Trial 
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Option Explicit
 
Private Declare Function TerminateProcess Lib "kernel32" (ByVal ApphProcess As Long, ByVal uExitCode 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 ProcessFirst Lib "kernel32" Alias "Process32First" (ByVal hSnapshot As Long, uProcess As PROCESSENTRY32) As Long
Private Declare Function ProcessNext Lib "kernel32" Alias "Process32Next" (ByVal hSnapshot As Long, uProcess As PROCESSENTRY32) As Long
Private Declare Function CreateToolhelpSnapshot Lib "kernel32" Alias "CreateToolhelp32Snapshot" (ByVal lFlags As Long, lProcessID As Long) As Long
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Private Declare Function GetVersion Lib "kernel32" () As Long
Private Declare Function GetCurrentProcess Lib "kernel32" () As Long
Private Declare Function OpenProcessToken Lib "advapi32" (ByVal ProcessHandle As Long, ByVal DesiredAccess As Long, TokenHandle As Long) As Long
Private Declare Function LookupPrivilegeValue Lib "advapi32" Alias "LookupPrivilegeValueA" (ByVal lpSystemName As String, ByVal lpName As String, lpLuid As LUID) As Long
Private Declare Function AdjustTokenPrivileges Lib "advapi32" (ByVal TokenHandle As Long, ByVal DisableAllPrivileges As Long, NewState As TOKEN_PRIVILEGES, ByVal BufferLength As Long, PreviousState As Any, ReturnLength As Any) As Long
Private Const MAX_PATH& = 260
Private Const TOKEN_ADJUST_PRIVILEGES = &H20
Private Const TOKEN_QUERY = &H8
Private Const SE_PRIVILEGE_ENABLED = &H2
Private Const PROCESS_ALL_ACCESS = &H1F0FFF
Private Type LUID
    lowpart As Long
    highpart As Long
End Type
Private Type TOKEN_PRIVILEGES
    PrivilegeCount As Long
    LuidUDT As LUID
    Attributes As Long
End Type
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 * MAX_PATH
End Type
 
Private Function KillApp(myName As String) As Boolean
    Const TH32CS_SNAPPROCESS As Long = 2&
    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
    On Local Error GoTo Finish
    appCount = 0
    uProcess.dwSize = Len(uProcess)
    hSnapshot = CreateToolhelpSnapshot(TH32CS_SNAPPROCESS, 0&)
    rProcessFound = ProcessFirst(hSnapshot, uProcess)
    Do While rProcessFound
        i = InStr(1, uProcess.szexeFile, Chr(0))
        szExename = LCase$(Left$(uProcess.szexeFile, i - 1))
        If Right$(szExename, Len(myName)) = LCase$(myName) Then
            KillApp = True
            appCount = appCount + 1
            myProcess = OpenProcess(PROCESS_ALL_ACCESS, False, uProcess.th32ProcessID)
            KillProcess uProcess.th32ProcessID, 0
        End If
        rProcessFound = ProcessNext(hSnapshot, uProcess)
    Loop
    Call CloseHandle(hSnapshot)
    Exit Function
Finish:
    MsgBox "Error!"
End Function
 
Private Function KillProcess(ByVal hProcessID As Long, Optional ByVal exitCode As Long) As Boolean
    Dim hToken As Long
    Dim hProcess As Long
    Dim tp As TOKEN_PRIVILEGES
    If GetVersion() >= 0 Then
        If OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES Or TOKEN_QUERY, hToken) = 0 Then
            GoTo CleanUp
        End If
        If LookupPrivilegeValue("", "SeDebugPrivilege", tp.LuidUDT) = 0 Then
            GoTo CleanUp
        End If
        tp.PrivilegeCount = 1
        tp.Attributes = SE_PRIVILEGE_ENABLED
        If AdjustTokenPrivileges(hToken, False, tp, 0, ByVal 0&, ByVal 0&) = 0 Then
            GoTo CleanUp
        End If
    End If
    hProcess = OpenProcess(PROCESS_ALL_ACCESS, 0, hProcessID)
    If hProcess Then
        KillProcess = (TerminateProcess(hProcess, exitCode) <> 0)
        ' close the process handle
        CloseHandle hProcess
    End If
 
 
    If GetVersion() >= 0 Then
        ' under NT restore original privileges
        tp.Attributes = 0
        AdjustTokenPrivileges hToken, False, tp, 0, ByVal 0&, ByVal 0&
CleanUp:
        If hToken Then CloseHandle hToken
    End If
 
End Function
 
Private Sub Command1_Click()
   KillApp "Notepad.exe"
End Sub
[+][-]10.09.2008 at 03:27PM PDT, ID: 22683026

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[+][-]10.09.2008 at 07:45PM PDT, ID: 22684059

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[+][-]10.09.2008 at 07:52PM PDT, ID: 22684091

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About this solution

Zones: Visual Basic Programming, VB Controls, VB Script
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Solution Provided By: egl1044
Participating Experts: 2
Solution Grade: A
 
 
 
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