在输入框中看不到密码，但只有**** [英] Don't see the password in inputbox but only ****

问题描述

我有一个vba代码，用于输入密码以在工作簿中打开工作表.

I have a vba code for input a password to open a sheet in a workbook.

If Intersect(Target, Range("C21")) Is Nothing Then
Else
    Dim Wachtwoord As String
    Wachtwoord = InputBox("Geef het wachtwoord op")
    If Wachtwoord = "peflex" Then
    Sheets("Matrix").Select
    ActiveSheet.Range("A1").Select
    Else
      MsgBox ("U heeft geen toegang")
    Sheets("Menu").Select
    ActiveSheet.Range("A1").Select
    End If
    End If

使用哪种代码，您可能看不到密码，而只能看到****

With which code is it possible that you don't see the password but only ****

推荐答案

我经常遇到这个问题，并且每次都使用相同的代码作为解决方法.我可以在网上找到的最早参考资料是 ozgrid.com ，其中提到 Daniel Klann 作为作家.

I run into this a lot and I use the same code as a workaround every time. The earliest reference I can find online is from ozgrid.com where the mention Daniel Klann as the writer.

在您的vbaproject中创建一个新模块并将此代码放入:

Create a new module in your vbaproject and drop this code in:

'////////////////////////////////////////////////////////////////////


'API functions to be used
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    'A window has been activated

        RetVal = GetClassName(wParam, strClassName, lngBuffer)

        If Left$(strClassName, RetVal) = "#32770" Then  'Class name of the Inputbox

            '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

Function InputBoxDK(Prompt, Title) 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)
    UnhookWindowsHookEx hHook

End Function

然后代替

Wachtwoord = InputBox("Geef het wachtwoord op")

使用:

Wachtwoord = InputBoxDK("Geef het wachtwoord op")

创建新模块后，您可能必须保存并重新启动excel.我通常将模块命名为 m_password 并将其导出为.bas文件，以便我可以重用它.超级方便.

You may have to save and restart excel after creating that new module. I generally name the module m_password and export it as a .bas file so I can reuse it. It's super handy.

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