vba with password

Vtookup

Board Regular
Joined
May 30, 2017
Messages
137
Office Version
  1. 2016
  2. 2013
Hi all.
i need help with vba code to unhide sheets.
i have 6 sheets in a workbook. by default, 3 worksheet in xlsheetveryhidden mode.
i would like a vba code to show those hidden sheet if password is entered.
Thanks.
 
Following is the Windows API code. This is not my code. I found it on the internet.

Code:
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 GetModuleHandle Lib "kernel32" Alias _
"GetModuleHandleA" (ByVal lpModuleName As String) As Long

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 hHook As Long) As Long

Private Declare Function SendDlgItemMessage Lib "user32" Alias "SendDlgItemMessageA" _
(ByVal hDlg As Long, ByVal nIDDlgItem As Long, ByVal wMsg As Long, _
ByVal wParam As Long, ByVal lParam As Long) 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 GetCurrentThreadId Lib "kernel32" () As Long

'~~> Constants to be used in our API functions
Private Const EM_SETPASSWORDCHAR = &HCC
Private Const WH_CBT = 5
Private Const HCBT_ACTIVATE = 5
Private Const HC_ACTION = 0

Private hHook As Long

Public Function NewProc(ByVal lngCode As Long, ByVal wParam As Long, _
ByVal lParam As Long) As Long
    Dim RetVal
    Dim strClassName As String, lngBuffer As Long

    If lngCode < HC_ACTION Then
        NewProc = CallNextHookEx(hHook, lngCode, wParam, lParam)
        Exit Function
    End If

    strClassName = String$(256, " ")
    lngBuffer = 255
    
    If lngCode = HCBT_ACTIVATE Then
        RetVal = GetClassName(wParam, strClassName, lngBuffer)
        '~~> Class name of the Inputbox
        If Left$(strClassName, RetVal) = "#32770" Then
            '~~> This changes the edit control so that it display the password character *.
            '~~> You can change the Asc("*") as you please.
            SendDlgItemMessage wParam, &H1324, EM_SETPASSWORDCHAR, Asc("*"), &H0
        End If
    End If

    '~~> This line will ensure that any other hooks that may be in place are
    '~~> called correctly.
    CallNextHookEx hHook, lngCode, wParam, lParam

End Function

Public Function InputBoxDK(Prompt, Optional Title, Optional Default, Optional XPos, _
Optional YPos, Optional HelpFile, Optional Context) As String
    Dim lngModHwnd As Long, lngThreadID As Long
    lngThreadID = GetCurrentThreadId
    lngModHwnd = GetModuleHandle(vbNullString)
    hHook = SetWindowsHookEx(WH_CBT, AddressOf NewProc, lngModHwnd, lngThreadID)
    InputBoxDK = InputBox(Prompt, Title, Default, XPos, YPos, HelpFile, Context)
    UnhookWindowsHookEx hHook
End Function
 
Upvote 0

Excel Facts

Select a hidden cell
Somehide hide payroll data in column G? Press F5. Type G1. Enter. Look in formula bar while you arrow down through G.
With the above codes you can modify the showveryhiddensheets() procedure as follows

Code:
Sub showveryhiddensheets()

Password = InputBoxDK("Enter a password to unhide sheets", "Unhide Very Hidden Sheets")

If Password = "Vtookup" Then
    For i = 1 To Sheets.Count
        If Sheets(i).Visible = xlVeryHidden Then
            Sheets(i).Visible = True
        End If
    Next i
Else
MsgBox "wrong password"
End If
End Sub
 
Upvote 0
Following is the Windows API code. This is not my code. I found it on the internet.

Code:
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 GetModuleHandle Lib "kernel32" Alias _
"GetModuleHandleA" (ByVal lpModuleName As String) As Long

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 hHook As Long) As Long

Private Declare Function SendDlgItemMessage Lib "user32" Alias "SendDlgItemMessageA" _
(ByVal hDlg As Long, ByVal nIDDlgItem As Long, ByVal wMsg As Long, _
ByVal wParam As Long, ByVal lParam As Long) 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 GetCurrentThreadId Lib "kernel32" () As Long

'~~> Constants to be used in our API functions
Private Const EM_SETPASSWORDCHAR = &HCC
Private Const WH_CBT = 5
Private Const HCBT_ACTIVATE = 5
Private Const HC_ACTION = 0

Private hHook As Long

Public Function NewProc(ByVal lngCode As Long, ByVal wParam As Long, _
ByVal lParam As Long) As Long
    Dim RetVal
    Dim strClassName As String, lngBuffer As Long

    If lngCode < HC_ACTION Then
        NewProc = CallNextHookEx(hHook, lngCode, wParam, lParam)
        Exit Function
    End If

    strClassName = String$(256, " ")
    lngBuffer = 255
    
    If lngCode = HCBT_ACTIVATE Then
        RetVal = GetClassName(wParam, strClassName, lngBuffer)
        '~~> Class name of the Inputbox
        If Left$(strClassName, RetVal) = "#32770" Then
            '~~> This changes the edit control so that it display the password character *.
            '~~> You can change the Asc("*") as you please.
            SendDlgItemMessage wParam, &H1324, EM_SETPASSWORDCHAR, Asc("*"), &H0
        End If
    End If

    '~~> This line will ensure that any other hooks that may be in place are
    '~~> called correctly.
    CallNextHookEx hHook, lngCode, wParam, lParam

End Function

Public Function InputBoxDK(Prompt, Optional Title, Optional Default, Optional XPos, _
Optional YPos, Optional HelpFile, Optional Context) As String
    Dim lngModHwnd As Long, lngThreadID As Long
    lngThreadID = GetCurrentThreadId
    lngModHwnd = GetModuleHandle(vbNullString)
    hHook = SetWindowsHookEx(WH_CBT, AddressOf NewProc, lngModHwnd, lngThreadID)
    InputBoxDK = InputBox(Prompt, Title, Default, XPos, YPos, HelpFile, Context)
    UnhookWindowsHookEx hHook
End Function

Do you have to place these codes in same module or separate modules?
 
Upvote 0
All the API are highlighted red and I am asked to update them for 64 bit use
 
Upvote 0
Hello Zubair,
I have been able to update it by marking if PtrSafe. Now I am stucked trying to run it. How do I call the Inputbox?
 
Upvote 0
Hi Kelly,

Now you have to use InputboxDK instead of simple inputbox because we created a UDF named INPUTBOXDK. Try the code below

Code:
Sub showveryhiddensheets()

Password = InputBoxDK("Enter a password to unhide sheets", "Unhide Very Hidden Sheets")

If Password = "Vtookup" Then
    For i = 1 To Sheets.Count
        If Sheets(i).Visible = xlVeryHidden Then
            Sheets(i).Visible = True
        End If
    Next i
Else
MsgBox "wrong password"
End If
End Sub
 
Last edited:
Upvote 0

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