Jaafar Tribak
Well-known Member
- Joined
- Dec 5, 2002
- Messages
- 9,806
- Office Version
- 2016
- Platform
- Windows
Hi all,
I Have recently written this piece of code so I just thought I would post it here for future reference should anyone be looking for vba code to lock\unlock a vbaproject programmatically without needing to use the unreliable SendKeys method.
workbook example
This code requires that the excel macro security setting "Trust access to the vba project object model" be checked... .Also, it is worth mentioning that this code is language-specific as it reads the VBE dialog captions. So this code won't work in Non-English editions of excel but, should be easy to adapt with some small changes.
The code was written and tested in excel 2016-64bit.
Code goes in a Standard Module:
Code usage examples :
I Have recently written this piece of code so I just thought I would post it here for future reference should anyone be looking for vba code to lock\unlock a vbaproject programmatically without needing to use the unreliable SendKeys method.
workbook example
This code requires that the excel macro security setting "Trust access to the vba project object model" be checked... .Also, it is worth mentioning that this code is language-specific as it reads the VBE dialog captions. So this code won't work in Non-English editions of excel but, should be easy to adapt with some small changes.
The code was written and tested in excel 2016-64bit.
Code goes in a Standard Module:
VBA Code:
Option Explicit
#If VBA7 Then
Private Declare PtrSafe Function SetWindowsHookEx Lib "user32" Alias "SetWindowsHookExA" (ByVal idHook As Long, ByVal lpfn As LongPtr, ByVal hmod As LongPtr, ByVal dwThreadId As Long) As LongPtr
Private Declare PtrSafe Function UnhookWindowsHookEx Lib "user32" (ByVal hhk As LongPtr) As Long
Private Declare PtrSafe Function CallNextHookEx Lib "user32" (ByVal hHook As LongPtr, ByVal nCode As Long, ByVal wParam As LongPtr, lParam As Any) As LongPtr
Private Declare PtrSafe Function GetCurrentThreadId Lib "kernel32" () As Long
Private Declare PtrSafe Function GetDlgItem Lib "user32" (ByVal hDlg As LongPtr, ByVal nIDDlgItem As Long) As LongPtr
Private Declare PtrSafe Function GetActiveWindow Lib "user32" () As LongPtr
Private Declare PtrSafe Function GetClassName Lib "user32" Alias "GetClassNameA" (ByVal hwnd As LongPtr, ByVal lpClassName As String, ByVal nMaxCount As Long) As Long
Private Declare PtrSafe Function GetWindowText Lib "user32" Alias "GetWindowTextA" (ByVal hwnd As LongPtr, ByVal lpString As String, ByVal cch As Long) As Long
Private Declare PtrSafe Function GetNextWindow Lib "user32" Alias "GetWindow" (ByVal hwnd As LongPtr, ByVal wFlag As Long) As LongPtr
Private Declare PtrSafe Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hWnd1 As LongPtr, ByVal hwnd2 As LongPtr, ByVal lpsz1 As String, ByVal lpsz2 As String) As LongPtr
Private Declare PtrSafe Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As LongPtr, ByVal wMsg As Long, ByVal wParam As LongPtr, ByVal lParam As String) As LongPtr
Private Declare PtrSafe Function SetFocus Lib "user32" (ByVal hwnd As LongPtr) As LongPtr
Private Declare PtrSafe Function SetTimer Lib "user32" (ByVal hwnd As LongPtr, ByVal nIDEvent As LongPtr, ByVal uElapse As Long, ByVal lpTimerFunc As LongPtr) As LongPtr
Private Declare PtrSafe Function KillTimer Lib "user32" (ByVal hwnd As LongPtr, ByVal nIDEvent As LongPtr) As Long
Private Declare PtrSafe Function SetWindowPos Lib "user32" (ByVal hwnd As LongPtr, ByVal hWndInsertAfter As LongPtr, ByVal X As Long, ByVal Y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long) As Long
Private Declare PtrSafe Function SetActiveWindow Lib "user32" (ByVal hwnd As LongPtr) As LongPtr
Private lHook As LongPtr
#Else
Private Declare Function SetWindowsHookEx Lib "user32" Alias "SetWindowsHookExA" (ByVal idHook As Long, ByVal lpfn As Long, ByVal hmod As Long, ByVal dwThreadId As Long) As Long
Private Declare Function UnhookWindowsHookEx Lib "user32" (ByVal hhk As Long) As Long
Private Declare Function CallNextHookEx Lib "user32" (ByVal hHook As Long, ByVal nCode As Long, ByVal wParam As Long, lParam As Any) As Long
Private Declare Function GetCurrentThreadId Lib "kernel32" () As Long
Private Declare Function GetDlgItem Lib "user32" (ByVal hDlg As Long, ByVal nIDDlgItem As Long) As Long
Private Declare Function GetActiveWindow Lib "user32" () As Long
Private Declare Function GetClassName Lib "user32" Alias "GetClassNameA" (ByVal hwnd As Long, ByVal lpClassName As String, ByVal nMaxCount As Long) As Long
Private Declare Function GetWindowText Lib "user32" Alias "GetWindowTextA" (ByVal hwnd As Long, ByVal lpString As String, ByVal cch As Long) As Long
Private Declare Function GetNextWindow Lib "user32" Alias "GetWindow" (ByVal hwnd As Long, ByVal wFlag As Long) As Long
Private Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hWnd1 As Long, ByVal hwnd2 As Long, ByVal lpsz1 As String, ByVal lpsz2 As String) As Long
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As String) As Long
Private Declare Function SetFocus Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function SetTimer Lib "user32" (ByVal hwnd As Long, ByVal nIDEvent As Long, ByVal uElapse As Long, ByVal lpTimerFunc As Long) As Long
Private Declare Function KillTimer Lib "user32" (ByVal hwnd As Long, ByVal nIDEvent As Long) As Long
Private Declare Function SetWindowPos Lib "user32" (ByVal hwnd As Long, ByVal hWndInsertAfter As Long, ByVal X As Long, ByVal Y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long) As Long
Private Declare Function SetActiveWindow Lib "user32" (ByVal hwnd As Long) As Long
Private lHook As Long
#End If
Private sWinClassName As String, sWorkbookName As String, sPassword As String
Public Property Let LockVBProject(ByVal WorkbookName As String, ByVal Password As String, ByVal bLock As Boolean)
#If VBA7 Then
Dim hwnd As LongPtr
#Else
Dim hwnd As Long
#End If
Const WH_CBT = 5
On Error GoTo errHandler
hwnd = GetActiveWindow
With Application.VBE
Set .ActiveVBProject = Application.Workbooks(WorkbookName).VBProject
If bLock Then
If .ActiveVBProject.Protection = 0 Then
sWinClassName = "VBAProject - Project Properties"
sWorkbookName = WorkbookName
Else
MsgBox "VBProect already locked": Exit Property
End If
Else
If .ActiveVBProject.Protection Then
sWinClassName = "VBAProject Password"
Else
MsgBox "VBProect already unlocked": Exit Property
End If
End If
End With
sPassword = Password
lHook = SetWindowsHookEx(WH_CBT, AddressOf Catch_DlgBox_Activation, 0, GetCurrentThreadId)
Application.VBE.CommandBars(1).FindControl(ID:=2578, recursive:=True).Execute
If hwnd = Application.hwnd Then
SetActiveWindow Application.hwnd
End If
Exit Property
errHandler:
Call UnHook
MsgBox "Runtime Error : " & Err.Number & vbCr & vbCr & Err.Description, vbExclamation
End Property
#If VBA7 Then
Private Function Catch_DlgBox_Activation(ByVal idHook As Long, ByVal wParam As LongPtr, ByVal lParam As LongPtr) As LongPtr
Dim hwnd As LongPtr
#Else
Private Function Catch_DlgBox_Activation(ByVal idHook As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Dim hwnd As Long
#End If
Const HCBT_ACTIVATE = 5
Const SWP_HIDEWINDOW = &H80
Dim sBuff As String * 256, lRet As Long
If idHook = HCBT_ACTIVATE Then
lRet = GetClassName(wParam, sBuff, 256)
If Left(sBuff, lRet) = "#32770" Then
sBuff = ""
lRet = GetWindowText(wParam, sBuff, 256)
If Left(sBuff, lRet) = sWinClassName Then
Call UnHook
SetWindowPos wParam, 0, 0, 0, 0, 0, SWP_HIDEWINDOW
Call SetTimer(Application.hwnd, wParam, 0, AddressOf Protect_UnProtect_Routine)
End If
End If
End If
Catch_DlgBox_Activation = CallNextHookEx(lHook, idHook, ByVal wParam, ByVal lParam)
End Function
Private Sub UnHook()
UnhookWindowsHookEx lHook
End Sub
#If VBA7 Then
Private Sub Protect_UnProtect_Routine(ByVal hwnd As LongPtr, ByVal uMsg As Long, ByVal nIDEvent As LongPtr, ByVal dwTimer As Long)
Dim hCurrentDlg As LongPtr, hwndSysTab As LongPtr
#Else
Private Sub Protect_UnProtect_Routine(ByVal hwnd As Long, ByVal uMsg As Long, ByVal nIDEvent As Long, ByVal dwTimer As Long)
Dim hCurrentDlg As Long, hwndSysTab As Long
#End If
Const TCM_FIRST = &H1300
Const TCM_SETCURSEL = (TCM_FIRST + 12)
Const TCM_SETCURFOCUS = (TCM_FIRST + 48)
Const EM_SETMODIFY = &HB9
Const BM_SETCHECK = &HF1
Const BST_CHECKED = &H1
Const BM_GETCHECK = &HF0
Const BM_CLICK = &HF5
Const WM_SETTEXT = &HC
Const WH_CBT = 5
Const GW_CHILD = 5
On Error GoTo errHandler
Call KillTimer(Application.hwnd, nIDEvent)
hCurrentDlg = nIDEvent
If sWinClassName = "VBAProject - Project Properties" Then
hwndSysTab = FindWindowEx(hCurrentDlg, 0, "SysTabControl32", vbNullString)
Call SendMessage(hwndSysTab, TCM_SETCURFOCUS, 1, 0)
Call SendMessage(hwndSysTab, TCM_SETCURSEL, 1, 0)
If SendMessage(GetDlgItem(GetNextWindow(hCurrentDlg, GW_CHILD), &H1557), BM_GETCHECK, 0, 0) = 0 Then
Call SendMessage(GetDlgItem(GetNextWindow(hCurrentDlg, GW_CHILD), &H1557), BM_SETCHECK, BST_CHECKED, 0)
Call SendMessage(GetDlgItem(GetNextWindow(hCurrentDlg, GW_CHILD), &H1555), WM_SETTEXT, 0, sPassword)
Call SendMessage(GetDlgItem(GetNextWindow(hCurrentDlg, GW_CHILD), &H1555), EM_SETMODIFY, True, 0)
Call SendMessage(GetDlgItem(GetNextWindow(hCurrentDlg, GW_CHILD), &H1556), WM_SETTEXT, 0, sPassword)
Call SendMessage(GetDlgItem(GetNextWindow(hCurrentDlg, GW_CHILD), &H1556), EM_SETMODIFY, True, 0)
End If
Call SendMessage(GetDlgItem(hCurrentDlg, &H1), BM_CLICK, 0, 0)
Call Application.OnTime(Now, "SaveVBProjectChanges")
ElseIf sWinClassName = "VBAProject Password" Then
Call SendMessage(GetDlgItem(hCurrentDlg, &H155E), WM_SETTEXT, 0, sPassword)
Call SendMessage(GetDlgItem(hCurrentDlg, &H155E), EM_SETMODIFY, True, 0)
lHook = SetWindowsHookEx(WH_CBT, AddressOf Catch_DlgBox_Creation, 0, GetCurrentThreadId)
Call SendMessage(GetDlgItem(hCurrentDlg, &H1), BM_CLICK, 0, 0)
Call Application.OnTime(Now, "UnHook")
End If
Exit Sub
errHandler:
Call UnHook
MsgBox "Runtime Error : " & Err.Number & vbCr & vbCr & Err.Description, vbExclamation
End Sub
#If VBA7 Then
Private Function Catch_DlgBox_Creation(ByVal idHook As Long, ByVal wParam As LongPtr, ByVal lParam As LongPtr) As LongPtr
#Else
Private Function Catch_DlgBox_Creation(ByVal idHook As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
#End If
Const HCBT_CREATEWND = 3
Dim sBuff As String * 256, lRet As Long
If idHook = HCBT_CREATEWND Then
lRet = GetClassName(wParam, sBuff, 256)
If Left(sBuff, lRet) = "#32770" Then
Catch_DlgBox_Creation = -1
Exit Function
End If
End If
Catch_DlgBox_Creation = CallNextHookEx(lHook, idHook, ByVal wParam, ByVal lParam)
End Function
Private Sub SaveVBProjectChanges()
On Error Resume Next
Application.EnableEvents = False
Workbooks(sWorkbookName).Save
Application.EnableEvents = True
End SubCode usage examples :
VBA Code:
Sub Lock_Example()
'To lock the vbproject. (change workbook name as required)
LockVBProject(WorkbookName:="MyTestBook.xls", Password:="1234") = True
End Sub
VBA Code:
Sub UnLock_Example()
'To un-lock the vbproject. (change workbook name as required)
LockVBProject(WorkbookName:="MyTestBook.xls", Password:="1234") = False
End Sub
