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  1. #1
    AmanKaur123 is offline Advanced Beginner
    Windows 7 64bit Access 2010 32bit
    Join Date
    Jan 2017
    Posts
    47

    Input box password in asterisks

    Hi Guys

    I am just trying to type Password in Asterisks in Input box using the following code. This code helps me to type asterisks which is great but when I want to check this password against the password in the Access table then that doesn't work.



    This code is written in a module which works fine:

    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 InputBoxPassword(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
    The following code is written in a module too which is invoked on the click event of the command button on the form and the message "2" appears that means it retrives null string from the Input box . Please see below the code:
    Code:
    Option Compare Database
    Public Function SendAgent(frmName As String, cboValue As String) As Boolean
    Dim I As String
    Dim StaffNum As Long
    If MsgBox("Do you wish to send this form to " & cboValue & " to sign off?", vbQuestion + vbYesNo, "Send to Agent?") = vbYes Then
    Do While SendAgent = False
    I = InputBoxPassword("Enter your Unique passKey", "Password")
    MsgBox I
    StaffNum = DLookup("[Staff Number]", "tblstaff", "struser='" & NameofUser() & "'")
    j = DLookup("PassKey", "tbl_RMS_PassKey", "UserID='" & NameofUser() & "'")
    If StrComp(I, j, vbBinaryCompare) = 0 Then
    MsgBox "1"
    SendAgent = True
    
    ElseIf I = vbNullString Then  
    
    MsgBox "2"
    SendAgent = False
    Exit Function
    Else
    'SendAgent = False
    MsgBox "3"
    MsgBox "Wrong PassKey,Please try again"
    End If
    Loop
    Else
    MsgBox "4"
    SendAgent = False
    End If
    End Function
    Public Sub SendEmail(s As String, cboValue As String, Ref As String)
        
        Set appOutLook = CreateObject("Outlook.Application")
        Set MailOutLook = appOutLook.CreateItem(olMailItem)
        With MailOutLook
        
        '.To = DLookup("[Email]", "qry_Function_LMEmail", "[Staff Number] = " & cboValue)
        .To = DLookup("[Email]", "tblstaff", "[Staff Number] = " & cboValue)
       
        .Subject = s & " needs to be signed off"
        .Body = " form has been completed by " & DLookup("[Staff Name]", "tblstaff", "struser='" & NameofUser() & "'") & vbCrLf & vbCrLf & "The Reference number is " & Ref & " Please review and signoff."
        .sEnd
        End With
    End Sub
    Thanks

  2. #2
    Bulzie is offline VIP
    Windows 7 64bit Access 2007
    Join Date
    Nov 2015
    Posts
    1,344
    Can you just use input mask of Password on the field so when they enter a value it will show as astericks? Is that what you are trying to do?

  3. #3
    andy49's Avatar
    andy49 is offline VIP
    Windows 10 Access 2007
    Join Date
    Nov 2016
    Location
    London
    Posts
    1,049
    Why not just change the input mask for the text box.


    Sent from my iPhone using Tapatalk

  4. #4
    AmanKaur123 is offline Advanced Beginner
    Windows 7 64bit Access 2010 32bit
    Join Date
    Jan 2017
    Posts
    47
    Guys, the input box now accepts asterisks which is good but how can I retrieve its value and check against some other value to make sure if the password is correct or not. When I try to retrieve the value from it then it gives me null string. Any suggestions in this anyone?

    I know one option is to build Input form from scratch and set the Input mask property of the textbox but just wondering if I can use the already existing Input box instead of creating a form .

    Thanks

  5. #5
    Bulzie is offline VIP
    Windows 7 64bit Access 2007
    Join Date
    Nov 2015
    Posts
    1,344
    The users are not entering asterisks, those are just hiding the actual characters typed. The password value in that password box should be there if you reference that field.

  6. #6
    AmanKaur123 is offline Advanced Beginner
    Windows 7 64bit Access 2010 32bit
    Join Date
    Jan 2017
    Posts
    47
    Thanks guys. I have now designed a form which looks exactly like Input box and does the purpose.

Please reply to this thread with any new information or opinions.

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