Visual Basic - sunco de las dos formas porfa?

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sunco de las dos formas porfa?

Publicado por yeni (146 intervenciones) el 15/06/2005 22:10:01
SUNCO por favor podrias enviarme el codigo de las dos formas k mencionaste...
por fa te digo de nuevo lo k quiero hacer...

necesito un codigo en visual basic k deshabilite la calculadora u otro programa

ejm: si el usuario quiere ejecutar el programa de la calculadora ..este no podra.
gracias....
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RE:sunco de las dos formas porfa?

Publicado por SuNcO (599 intervenciones) el 16/06/2005 23:51:57
Ok, el primero es por su ejecutable.. el codigo es algo largo, ahi te va

Primero ocupas en un Form un ListBox y un Timer (le pones de Interval 100)

Private Sub Form_Load()
List1.AddItem "calc.exe"
List1.AddItem "notepad.exe"
List1.AddItem "mspaint.exe"
End Sub

Private Sub Timer1_Timer()
On Error Resume Next
For i = 0 To List1.ListCount - 1
KillApp List1.List(i)
Next i
End Sub

En un modulo agregas esto :

Option Explicit
Const MAX_PATH& = 260

Declare Function TerminateProcess _
Lib "kernel32" (ByVal ApphProcess As Long, _
ByVal uExitCode As Long) As Long
Declare Function OpenProcess Lib _
"kernel32" (ByVal dwDesiredAccess As Long, _
ByVal blnheritHandle As Long, _
ByVal dwAppProcessId 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

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

Const TOKEN_ADJUST_PRIVILEGES = &H20
Const TOKEN_QUERY = &H8
Const SE_PRIVILEGE_ENABLED = &H2
Const PROCESS_ALL_ACCESS = &H1F0FFF

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

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 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)
If KillProcess(uProcess.th32ProcessID, 0) Then
'For debug.... Remove this
' MsgBox "Instance no. " & appCount & " of " & szExename & " was terminated!"
End If

End If
rProcessFound = ProcessNext(hSnapshot, uProcess)
Loop
Call CloseHandle(hSnapshot)
Exit Function
Finish:
MsgBox "Error!"
End Function

'Terminate any application and return an exit code to Windows.
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

' =========================================================
' =========================================================
' =========================================================
' =========================================================

Para la segunda manera pones esto :

Private Sub Form_Load()
List1.AddItem "Calculadora"
List1.AddItem "Bloc de notas"
List1.AddItem "Paint"
End Sub

Private Sub Timer1_Timer()
Call EnumWindows(AddressOf BuscaProgramas, 0)
End Sub

Y en un Modulo :

Public Declare Function EnumWindows Lib "user32" (ByVal lpEnumFunc As Long, ByVal lParam As Long) As Long
Public Declare Function GetWindowTextLength Lib "user32" Alias "GetWindowTextLengthA" (ByVal hWnd As Long) As Long
Public Declare Function GetWindowText Lib "user32" Alias "GetWindowTextA" (ByVal hWnd As Long, ByVal lpString As String, ByVal cch As Long) As Long
Public Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long

Private Const WM_CLOSE = &H10

Public Function BuscaProgramas(ByVal hWnd As Long, ByVal lParam As Long) As Boolean
Dim lLength As Long
Dim strCaption As String

lLength = GetWindowTextLength(hWnd)
strCaption = String(lLength, vbNullChar)
GetWindowText hWnd, strCaption, lLength + 1

If lLength > 0 Then
If strCaption <> "" Then
For i = 0 To Form1.List1.ListCount - 1
If strCaption Like "*" & Form1.List1.List(i) & "*" Then
SendMessage hWnd, WM_CLOSE, 0, 0
End If
Next i
End If
End If

BuscaProgramas = True
End Function

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