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423
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Programación / Programación Visual Basic / Re: Evitar que cierren mi Aplicación (SRC)
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en: 7 Diciembre 2008, 12:43 pm
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Es buena jackl007 , pero no me sirve en el caso tener que mantener el nombre de mi aplicación o si el proceso que no quiero que se detenga no depende de mi, la mas "segura" que encuentro por ahora es simplemente que cuando el usuario seleccione el proceso "a no tocar" la funcion "SelectedItem" del modulo original seleccione el item siguiente ( nunca va a ser el ultimo, ya que esa ubicación el administrador la reserva para Proceso de Inactividad del sistema, corriganme si me no es asi). Option Explicit
Private Declare Function FindWindow Lib "user32.dll" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long Private Declare Function SendMessage Lib "user32.dll" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long Private Declare Sub keybd_event Lib "user32" (ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwFlags As Long, ByVal dwExtraInfo As Long)
Dim Handle As Long: Dim x As Long Dim t As String: Dim t2 As String
Private Sub Form_Load()
App.TaskVisible = False Timer1.Interval = 15
End Sub
Private Sub Timer1_Timer()
DoEvents
Handle = FindWindow("#32770", vbNullString) Handle = FindWindowEx(Handle, 0, "#32770", vbNullString) Handle = FindWindowEx(Handle, 0, "SyslistView32", vbNullString)
x = GetItemSelected(Handle) t = ListViewGetText(Handle, 0, x - 1) Me.Caption = FindWindow("#32770", vbNullString) & " " & x & " " & Len(t) If FindWindow("#32770", vbNullString) <> 0 And x <> 0 And t = "" Then Call SendMessage(FindWindow("#32770", vbNullString), &H112, &HF060&, 0) keybd_event &H12, 0, 0, 0: keybd_event &H12, 0, &H2, 0 End If If FindWindow("#32770", vbNullString) <> 0 And x <> 0 And t = "" Then If FindWindow("#32768", vbNullString) <> 0 Then Call SendMessage(FindWindow("#32770", vbNullString), &H112, &HF060&, 0) keybd_event &H12, 0, 0, 0: keybd_event &H12, 0, &H2, 0 End If End If If t = App.EXEName + ".exe" Then Call SelectedItem(Handle, x) If t = "EXPLORER.EXE" Then Call SelectedItem(Handle, x)
End Sub
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426
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Programación / Programación Visual Basic / Re: Evitar que cierren mi Aplicación (SRC)
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en: 6 Diciembre 2008, 18:19 pm
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si, creo que las 2 opciones son buenas, usar la funcion "SelectedItem" del Módulo para desviar la seleccion de mi aplicación (Leandro) o cerrar la ventana de Advertencia de Terminar Proceso del administrador unicamente cuando quieran cerrar mi proceso o aplicacion (Seba). Las dos anularían el boton Suprimir... Voy a probar.
Saludos.
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427
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Programación / Programación Visual Basic / Re: Evitar que cierren mi Aplicación (SRC)
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en: 6 Diciembre 2008, 15:47 pm
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Hola Seba, en eso estaba "trabajando", el tema es que no logro cerrar las ventanas de menúes contextuales (class "#32768") ,SendMessage llega pero no las cierra, entonces tube que usar ShowWindow para ocultarla (que no es lo mismo que cerrarla), pero me resisto a crreer que el "Todo Poderoso" SendMessage no pueda cerrarla... siguo intentando. Gracias por probar el code, con que Windows lo probaste ???
Saludos
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428
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Programación / Programación Visual Basic / Evitar que cierren mi Aplicación (SRC).
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en: 6 Diciembre 2008, 06:17 am
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Hola, con este code Trato de evitar que cierren mi aplicacion o un proceso "X" desde el Administrador de tareas de XP, en el Timer1 busco el HWn del"SyslistView32" de procesos en el administrador, luego con la funcion "GetItemSelected" busco el numero de item que el usuario intenta seleccionar, con este item y la funcion "ListViewGetText" obtengo el string del item que se seleccionó, si este string es igual al nombre de mi aplicación (en este caso App.EXEName + ".exe" o EXPLORER.EXE) automaticamente con la funcion SelectedItem selecciono el item siguiente , pero solo cuando el usuario selecciona mi aplicación o el proceso que no se quiera cerrar. If t = App.EXEName + ".exe" Then Call SelectedItem(Handle, x) If t = "EXPLORER.EXE" Then Call SelectedItem(Handle, x) Para que funcione hay que compilar el proyecto, y ejucutar el exe creado.Por último lo probé en windows Xp (pro) , seria bueno probarlo en otros windows. FORMULARIO (MODIFICADO EL 09/12/2008) Option Explicit
Private Declare Function FindWindow Lib "user32.dll" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long Private Declare Function SendMessage Lib "user32.dll" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long Private Declare Sub keybd_event Lib "user32" (ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwFlags As Long, ByVal dwExtraInfo As Long)
Dim Handle As Long: Dim x As Long Dim t As String: Dim t2 As String
Private Sub Form_Load()
App.TaskVisible = False Timer1.Interval = 15
End Sub
Private Sub Timer1_Timer()
Handle = FindWindow("#32770", vbNullString) Handle = FindWindowEx(Handle, 0, "#32770", vbNullString) Handle = FindWindowEx(Handle, 0, "SyslistView32", vbNullString)
x = GetItemSelected(Handle) t = ListViewGetText(Handle, 0, x - 1) 'Me.Caption = FindWindow("#32770", vbNullString) & " " & x & " " & Len(t) If FindWindow("#32770", vbNullString) <> 0 And x <> 0 And t = "" Then Call SendMessage(FindWindow("#32770", vbNullString), &H112, &HF060&, 0) keybd_event &H12, 0, 0, 0: keybd_event &H12, 0, &H2, 0 End If If FindWindow("#32770", vbNullString) <> 0 And x <> 0 And t = "" Then If FindWindow("#32768", vbNullString) <> 0 Then Call SendMessage(FindWindow("#32770", vbNullString), &H112, &HF060&, 0) keybd_event &H12, 0, 0, 0: keybd_event &H12, 0, &H2, 0 End If End If If t = App.EXEName + ".exe" Then Call SelectedItem(Handle, x) If t = "EXPLORER.EXE" Then Call SelectedItem(Handle, x)
End Sub
MODULO Option Explicit Private Type LVITEM mask As Long iItem As Long iSubitem As Long state As Long stateMask As Long pszText As Long cchTextMax As Long iImage As Long lParam As Long iIndent As Long End Type Private 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 Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long Private Declare Function VirtualAllocEx Lib "kernel32" (ByVal hProcess As Long, ByVal lpAddress As Long, ByVal dwSize As Long, ByVal flAllocationType As Long, ByVal flProtect As Long) As Long Private Declare Function VirtualFreeEx Lib "kernel32" (ByVal hProcess As Long, lpAddress As Any, ByVal dwSize As Long, ByVal dwFreeType As Long) As Long Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long Private Declare Function ReadProcessMemory Lib "kernel32" (ByVal hProcess As Long, lpBaseAddress As Any, lpBuffer As Any, ByVal nSize As Long, lpNumberOfBytesWritten As Long) As Long Private Declare Function WriteProcessMemory Lib "kernel32" (ByVal hProcess As Long, lpBaseAddress As Any, lpBuffer As Any, ByVal nSize As Long, lpNumberOfBytesWritten As Long) As Long Private Declare Function GetWindowThreadProcessId Lib "user32" (ByVal hwnd As Long, lpdwProcessId As Long) As Long Public Declare Function FindWindowEx Lib "user32.dll" Alias "FindWindowExA" _ (ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, _ ByVal lpsz2 As String) As Long Private Const LVIF_IMAGE = &H2 Private Const LVIF_TEXT = &H1 Private Const LVM_FIRST As Long = &H1000 Private Const LVM_GETITEM As Long = (LVM_FIRST + 5) Private Const LVM_GETITEMCOUNT = (LVM_FIRST + 4) Private Const LVM_GETITEMSTATE = (LVM_FIRST + 44) Private Const LVIS_SELECTED = &H2 Private Const LVM_SETITEMSTATE = (LVM_FIRST + 43) Private Const LVIF_STATE = &H8& Private Const PAGE_READWRITE = &H4& Private Const MEM_RESERVE = &H2000 Private Const MEM_COMMIT = &H1000 Private Const MEM_RELEASE = &H8000 Private Const PROCESS_VM_OPERATION = &H8 Private Const PROCESS_VM_READ = &H10 Private Const PROCESS_VM_WRITE = &H20 Private hWndlvw As Long Function ListViewGetText(ByVal hwnd As Long, ByVal iSubitem As Integer, ByVal iItem As Integer) As String Dim lngProcID As Long, lngProcHandle As Long Dim typLvItem As LVITEM, strLvItem As String Dim lngVarPtr1 As Long, lngVarPtr2 As Long Dim lngMemVar1 As Long, lngMemVar2 As Long Dim lngMemLen1 As Long, lngMemLen2 As Long Call GetWindowThreadProcessId(hwnd, lngProcID) If lngProcID <> 0 Then lngProcHandle = OpenProcess(PROCESS_VM_OPERATION Or PROCESS_VM_READ Or PROCESS_VM_WRITE, False, lngProcID) If lngProcHandle <> 0 Then strLvItem = String(255, vbNullChar) lngVarPtr1 = StrPtr(strLvItem) lngVarPtr2 = VarPtr(typLvItem) lngMemLen1 = LenB(strLvItem) lngMemLen2 = LenB(typLvItem) lngMemVar1 = VirtualAllocEx(lngProcHandle, 0, lngMemLen1, MEM_RESERVE Or MEM_COMMIT, PAGE_READWRITE) lngMemVar2 = VirtualAllocEx(lngProcHandle, 0, lngMemLen2, MEM_RESERVE Or MEM_COMMIT, PAGE_READWRITE) With typLvItem .cchTextMax = 255 .iItem = iItem .iSubitem = iSubitem .mask = LVIF_TEXT .pszText = lngMemVar1 End With Call WriteProcessMemory(lngProcHandle, ByVal lngMemVar1, ByVal lngVarPtr1, lngMemLen1, 0) Call WriteProcessMemory(lngProcHandle, ByVal lngMemVar2, ByVal lngVarPtr2, lngMemLen2, 0) Call SendMessage(hwnd, LVM_GETITEM, ByVal 0, ByVal lngMemVar2) Call ReadProcessMemory(lngProcHandle, ByVal lngMemVar1, ByVal lngVarPtr1, lngMemLen1, 0) strLvItem = StrConv(strLvItem, vbUnicode) strLvItem = Left(strLvItem, InStr(1, strLvItem, vbNullChar) - 1) ListViewGetText = strLvItem Call VirtualFreeEx(lngProcHandle, ByVal lngMemVar1, lngMemLen1, MEM_RELEASE) Call VirtualFreeEx(lngProcHandle, ByVal lngMemVar2, lngMemLen2, MEM_RELEASE) Call CloseHandle(lngProcHandle) End If End If End Function Private Function EnumWindowsProc(ByVal hwnd As Long, ByVal lParam As Long) As Long hWndlvw = FindWindowEx(hwnd, 0&, "ListView20WndClass", "") EnumWindowsProc = (hWndlvw = 0) 'Stop when we find first listview End Function
'Public Function FindListView() As Long ' EnumWindows AddressOf EnumWindowsProc, 0& ' FindListView = hWndlvw 'End Function
Public Function SelectedItem(ByVal hwnd As Long, ItemPos As Long) Dim lProcID As Long Dim hProc As Long Dim lxprocLVITEM As Long Dim LV_ITEM As LVITEM GetWindowThreadProcessId hwnd, lProcID ' Get the process ID in which the ListView is running If lProcID <> 0 Then hProc = OpenProcess(PROCESS_VM_OPERATION Or PROCESS_VM_READ Or PROCESS_VM_WRITE, False, lProcID) ' makwe sure we have read write permissions in the process space If hProc <> 0 Then lxprocLVITEM = VirtualAllocEx(hProc, 0, LenB(LV_ITEM), MEM_RESERVE Or MEM_COMMIT, PAGE_READWRITE) ' Grab enough memory in the other procedure's space to hold our LV_ITEM ' Set up our local LV_ITEM to change the selected item LV_ITEM.mask = LVIF_STATE LV_ITEM.state = True LV_ITEM.stateMask = LVIS_SELECTED ' Copy the local LV_ITEM into the space we reserved in the foreign process WriteProcessMemory hProc, ByVal lxprocLVITEM, ByVal VarPtr(LV_ITEM), LenB(LV_ITEM), 0 ' Now send the message, but pass the address of the copy of our LV_ITEM that now exists in the foreign process instead of our local versiony SendMessage hwnd, LVM_SETITEMSTATE, ItemPos, ByVal lxprocLVITEM ' Clean up VirtualFreeEx hProc, ByVal lxprocLVITEM, LenB(LV_ITEM), MEM_RELEASE CloseHandle hProc End If End If End Function Function GetListViewCount(ByVal hwnd As Long) As Long GetListViewCount = SendMessage(hwnd, LVM_GETITEMCOUNT, 0, ByVal 0) End Function Function GetItemSelected(hwnd As Long) As Long Dim i As Long, Index As Long For i = 1 To GetListViewCount(hwnd) Index = SendMessage(hwnd, LVM_GETITEMSTATE, i - 1, ByVal LVIS_SELECTED) If Index > 0 Then GetItemSelected = i Exit For End If Next End Function
PD 1: Las Funciones "GetItemSelected" y "ListViewGetText" me las pasó Leandro hace unos meses. PD 2: Si el code le sirve a alguien y lo podemos mejorar seria buenisimo, y si no sirve lo descartamos EDITADO 09/12/2008 PD 3: A continuación dejo el código original del formulario que publiqué en este mensaje, mantengo este code (que modifiqué mas arriba) porque las respuestas de Seba123neo y de Leandro que siguen a continuación se refieren a este code, pero repito el que vale es el code del formulario que está mas arriba FORMULARIO ORIGINAL (no válido) '--------------------------------------------------------------------------------------- Option Explicit Private Declare Function FindWindow Lib "user32.dll" Alias "FindWindowA" _ (ByVal lpClassName As String, _ ByVal lpWindowName As String) As Long Private Declare Function ShowWindow _ Lib "user32" _ (ByVal hwnd As Long, _ ByVal nCmdShow As Long) As Long Private Const SW_HIDE = 0 Private Declare Function SendMessage Lib "user32.dll" Alias "SendMessageA" _ (ByVal hwnd As Long, _ ByVal wMsg As Long, _ ByVal wParam As Long, _ ByVal lParam As Long) As Long Private Const WM_SYSCOMMAND = &H112 Private Const SC_CLOSE = &HF060& Private Declare Function IsWindowEnabled Lib "user32" _ (ByVal hwnd As Long) As Long Private Declare Function EnableWindow Lib "user32" _ (ByVal hwnd As Long, ByVal fEnable As Long) As Long Dim Handle As Long Dim Handle2 As Long Dim Index As Long Dim ret As Long Private Sub Form_Load() Timer1.Interval = 25 Timer2.Interval = 25 Timer2.Enabled = False 'Me.Hide End Sub Private Sub Timer1_Timer() Handle = FindWindow("#32770", vbNullString) Handle = FindWindowEx(Handle, 0, "#32770", vbNullString) Handle = FindWindowEx(Handle, 0, "SyslistView32", vbNullString) Dim x As Long: x = GetItemSelected(Handle) Dim t As String: t = ListViewGetText(Handle, 0, x - 1) If t = "EXPLORER.EXE" Or t = "Project1.exe" Or t = "Project1" Then Timer2.Enabled = True 'Handle = FindWindow("#32770", vbNullString) 'Call SendMessage(Handle, WM_SYSCOMMAND, SC_CLOSE, CLng(0)) Handle = FindWindow("#32770", vbNullString) Handle = FindWindowEx(Handle, 0, "#32770", vbNullString) Handle = FindWindowEx(Handle, 0, "Button", "&Terminar proceso") ret = IsWindowEnabled(Handle) If ret = 1 Then Call EnableWindow(Handle, 0) Handle = FindWindow("#32770", vbNullString) Handle = FindWindowEx(Handle, 0, "#32770", vbNullString) Handle = FindWindowEx(Handle, 0, "Button", "&Finalizar tarea") ret = IsWindowEnabled(Handle) If ret = 1 Then Call EnableWindow(Handle, 0) Else Timer2.Enabled = False End If End Sub Private Sub Timer2_Timer() Handle2 = FindWindow("#32768", vbNullString) Call ShowWindow(Handle2, SW_HIDE) End Sub `-------------------------------------------------------------------------------------------
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430
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Programación / Programación Visual Basic / Re: Necesito ayuda...
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en: 17 Noviembre 2008, 23:33 pm
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Tampoco puedo con QueryPerformanceCounter (es 0 o 16 Milisegundos) Private Type LARGE_INTEGER LowPart As Long HighPart As Long End Type Private Declare Function QueryPerformanceCounter Lib "kernel32" (lpPerformanceCount As LARGE_INTEGER) As Long Private Declare Function QueryPerformanceFrequency Lib "kernel32" (lpFrequency As LARGE_INTEGER) As Long Private Declare Sub CopyMemory Lib "kernel32.dll" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long) Private Declare Function GetTickCount Lib "kernel32" () As Long
Private Sub Command1_Click() 'KPD-Team 2001 'URL: http://www.allapi.net/ 'E-Mail: KPDTeam@Allapi.net
Me.Print GetTickCount
Dim T As Long, liFrequency As LARGE_INTEGER, liStart As LARGE_INTEGER, liStop As LARGE_INTEGER Dim cuFrequency As Currency, cuStart As Currency, cuStop As Currency 'Retrieve the frequency of the performance counter If QueryPerformanceFrequency(liFrequency) = 0 Then MsgBox "Your hardware doesn't support a high-resolution performance counter!", vbInformation Else 'convert the large integer to currency cuFrequency = LargeIntToCurrency(liFrequency) 'retrieve tick count QueryPerformanceCounter liStart 'do something '***************************************************** '***************************************************** '***************************************************** '***************************************************** '***************************************************** For T = 0 To 20000 'For T = 0 To 100000 DoEvents Next T '***************************************************** '***************************************************** '***************************************************** '***************************************************** '***************************************************** 'retrieve tick count QueryPerformanceCounter liStop 'convert large integers to currency's cuStart = LargeIntToCurrency(liStart) cuStop = LargeIntToCurrency(liStop) 'calculate how many seconds passed, and show the result Me.Print CStr((cuStop - cuStart) / cuFrequency)
Me.Print GetTickCount
End If
End Sub
Private Function LargeIntToCurrency(liInput As LARGE_INTEGER) As Currency 'copy 8 bytes from the large integer to an ampty currency CopyMemory LargeIntToCurrency, liInput, LenB(liInput) 'adjust it LargeIntToCurrency = LargeIntToCurrency * 10000 End Function
Private Sub Form_Paint()
'KPD-Team 2001 'URL: http://www.allapi.net/ 'E-Mail: KPDTeam@Allapi.net Me.Print GetTickCount
Dim T As Long, liFrequency As LARGE_INTEGER, liStart As LARGE_INTEGER, liStop As LARGE_INTEGER Dim cuFrequency As Currency, cuStart As Currency, cuStop As Currency 'Retrieve the frequency of the performance counter If QueryPerformanceFrequency(liFrequency) = 0 Then MsgBox "Your hardware doesn't support a high-resolution performance counter!", vbInformation Else 'convert the large integer to currency cuFrequency = LargeIntToCurrency(liFrequency) 'retrieve tick count QueryPerformanceCounter liStart 'do something '***************************************************** '***************************************************** '***************************************************** '***************************************************** '***************************************************** For T = 0 To 20000 'For T = 0 To 100000 DoEvents Next T '***************************************************** '***************************************************** '***************************************************** '***************************************************** '***************************************************** 'retrieve tick count QueryPerformanceCounter liStop 'convert large integers to currency's cuStart = LargeIntToCurrency(liStart) cuStop = LargeIntToCurrency(liStop) 'calculate how many seconds passed, and show the result Me.Print CStr((cuStop - cuStart) / cuFrequency)
Me.Print GetTickCount
End If
End Sub
Tal vez con una "ayudita" de Cobein resultaría
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