KingSencat
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How Do I Kill a Proccess Using Visual Basic v6.0? ( Almost Solved )
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?
>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?
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
<<< The problem is that i want to KILL the proccess of a window by providing only the WindowTitle Name. >>>
This is actual very simple. First you need to use FindWindow to a handle from that window. Then you want to get a pid from that hwnd handle. Next you need to get a real process handle by using OpenProcess. Once you have this you can pass the real process handle to the TerminateProcess API. I wrote an example that should help you.
This is actual very simple. First you need to use FindWindow to a handle from that window. Then you want to get a pid from that hwnd handle. Next you need to get a real process handle by using OpenProcess. Once you have this you can pass the real process handle to the TerminateProcess API. I wrote an example that should help you.
Option Explicit
Private Declare Function FindWindowW Lib "user32.dll" (ByVal lpClassName As Long, ByVal lpWindowTitle As Long) As Long
Private Declare Function GetWindowThreadProcessId Lib "user32.dll" (ByVal hWnd As Long, ByRef lpdwProcessId As Long) As Long
Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Private Declare Function TerminateProcess Lib "kernel32" (ByVal hProcess As Long, ByVal uExitCode As Long) As Long
' * process access rights for hProcess
Private Const PROCESS_QUERY_INFORMATION As Long = 1024
Private Const PROCESS_TERMINATE As Long = &H1
Public Sub TerminateProcessFromTitle(ByVal szTitle As String)
Dim hWindow As Long ' * handle to the window
Dim hThread As Long ' * identifier of the thread that created the window
Dim hProcess As Long ' * handle to the process
Dim ppid As Long ' * pointer to *ppid
' * get a handle to the window from the title
hWindow = FindWindowW(StrPtr(vbNullString), StrPtr(szTitle))
' * sanity check
If hWindow <> 0 Then
' * get a process id from this handle
hThread = GetWindowThreadProcessId(hWindow, ppid)
' * return the real process handle from the *ppid
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION Or PROCESS_TERMINATE, 0, ppid)
' * terminate the specified process
Call TerminateProcess(hProcess, 0)
End If
End Sub
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