在输入框中看不到密码，但只有****

Question

我有一个用于输入密码的vba代码，以在工作簿中打开工作表。

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 

随着该代码是有可能，你看不到密码，但只有****

Answer 1

我碰到这个了很多，我每次都使用相同的代码作为一种解决方法。我可以在网上找到的最早的参考文献是从ozgrid.com，其中提到Daniel Klann作为作者。

创建您的VBAProject一个新的模块，并放弃这一代码：

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


'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，而不是

Wachtwoord = InputBox("Geef het wachtwoord op") 

用途：

Wachtwoord = InputBoxDK("Geef het wachtwoord op") 

您可能需要保存并重启在创建新模块后创建excel。我通常将该模块命名为m_password并将其导出为.bas文件，以便我可以重复使用它。它非常方便。