Change the language of Yes/No buttons in vba dialog - vba

Is it possible to change the language of Yes/No buttons in standard vba dialog box ? See the code below:
If MsgBox("Bla bla bla question", vbYesNo) = vbYes Then ...

Option Explicit
Private Declare Function GetCurrentThreadId Lib "kernel32" _
() As Long
Public Declare Function GetDesktopWindow Lib "user32" _
() As Long
Private Declare Function GetWindowLong Lib "user32" _
Alias "GetWindowLongA" _
(ByVal hWnd As Long, _
ByVal nIndex As Long) As Long
Private Declare Function MessageBox Lib "user32" _
Alias "MessageBoxA" _
(ByVal hWnd As Long, _
ByVal lpText As String, _
ByVal lpCaption As String, _
ByVal wType As Long) As Long
Private Declare Function SetDlgItemText Lib "user32" _
Alias "SetDlgItemTextA" _
(ByVal hDlg As Long, _
ByVal nIDDlgItem As Long, _
ByVal lpString 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 SetWindowText Lib "user32" _
Alias "SetWindowTextA" _
(ByVal hWnd As Long, _
ByVal lpString As String) As Long
Private Declare Function UnhookWindowsHookEx Lib "user32" _
(ByVal hHook As Long) As Long
Private Const IDPROMPT = &HFFFF&
Private Const WH_CBT = 5
Private Const GWL_HINSTANCE = (-6)
Private Const HCBT_ACTIVATE = 5
Private Type MSGBOX_HOOK_PARAMS
hWndOwner As Long
hHook As Long
End Type
Private MSGHOOK As MSGBOX_HOOK_PARAMS
Dim mbFlags As VbMsgBoxStyle
Dim mbFlags2 As VbMsgBoxStyle
Dim mTitle As String
Dim mPrompt As String
Dim But1 As String
Dim But2 As String
Dim But3 As String
'---------------------------------------------------------------------------
Public Function cMsgBox(hWnd As Long, _
mMsgbox As VbMsgBoxStyle, _
Title As String, _
Prompt As String, _
Optional mMsgIcon As VbMsgBoxStyle, _
Optional Button1 As String, _
Optional Button2 As String, _
Optional Button3 As String) As String
'---------------------------------------------------------------------------
' Function: Controls the display of the custom MsgBox and returns the
' selected button
' Synopsis: Sets supplied custom parameters and returns text of
' the button that was pressed as a string
'---------------------------------------------------------------------------
Dim mReturn As Long
mbFlags = mMsgbox
mbFlags2 = mMsgIcon
mTitle = Title
mPrompt = Prompt
But1 = Button1
But2 = Button2
But3 = Button3
'show the custom messagebox
mReturn = MessageBoxH(hWnd, GetDesktopWindow(), mbFlags Or mbFlags2)
'test which button of the 7 possible options has been pressed
Select Case mReturn
Case vbAbort
cMsgBox = But1
Case vbRetry
cMsgBox = But2
Case vbIgnore
cMsgBox = But3
Case vbYes
cMsgBox = But1
Case vbNo
cMsgBox = But2
Case vbCancel
cMsgBox = But3
Case vbOK
cMsgBox = But1
End Select
End Function
'-------------------------------------------------------------------------------
Public Function MessageBoxH(hWndThreadOwner As Long, _
hWndOwner As Long, _
mbFlags As VbMsgBoxStyle) As Long
'-------------------------------------------------------------------------------
' Function: Calls the hook
'-------------------------------------------------------------------------------
Dim hInstance As Long
Dim hThreadId As Long
hInstance = GetWindowLong(hWndThreadOwner, GWL_HINSTANCE)
hThreadId = GetCurrentThreadId()
With MSGHOOK
.hWndOwner = hWndOwner
.hHook = SetWindowsHookEx(WH_CBT, AddressOf MsgBoxHookProc, hInstance, hThreadId)
End With
MessageBoxH = MessageBox(hWndOwner, Space$(120), Space$(120), mbFlags)
End Function
'-------------------------------------------------------------------------------
Public Function MsgBoxHookProc(ByVal uMsg As Long, _
ByVal wParam As Long, _
ByVal lParam As Long) As Long
'-------------------------------------------------------------------------------
'Function: Formats and shows the custom messagebox
' Synopsis: Setups the window text
' Setups the dialog box text
' Checks which buttons have been added to messagebox (choice of 6
' combinations ofthe 7 buttons), then sets the button text
' accordingly
' Then removes the hook
'-------------------------------------------------------------------------------
If uMsg = HCBT_ACTIVATE Then
SetWindowText wParam, mTitle
SetDlgItemText wParam, IDPROMPT, mPrompt
Select Case mbFlags
Case vbAbortRetryIgnore
SetDlgItemText wParam, vbAbort, But1
SetDlgItemText wParam, vbRetry, But2
SetDlgItemText wParam, vbIgnore, But3
Case vbYesNoCancel
SetDlgItemText wParam, vbYes, But1
SetDlgItemText wParam, vbNo, But2
SetDlgItemText wParam, vbCancel, But3
Case vbOKOnly
SetDlgItemText wParam, vbOK, But1
Case vbRetryCancel
SetDlgItemText wParam, vbRetry, But1
SetDlgItemText wParam, vbCancel, But2
Case vbYesNo
SetDlgItemText wParam, vbYes, But1
SetDlgItemText wParam, vbNo, But2
Case vbOKCancel
SetDlgItemText wParam, vbOK, But1
SetDlgItemText wParam, vbCancel, But2
End Select
UnhookWindowsHookEx MSGHOOK.hHook
End If
MsgBoxHookProc = False
End Function
Sub Test()
Dim mReturn As String
mReturn = cMsgBox(1, _
vbYesNoCancel, _
"Customize your message box buttons", _
"Do you not agree that this is pretty cool?", _
, _
"shat lav er", _
"durs chekav", _
"der harcer kan")
cMsgBox 1, _
vbOKOnly, _
"Customize your message box buttons", _
"You selected the '" & mReturn & " 'button", _
, _
"Okay"
End Sub
Sub test2()
Dim a
Dim ary
ary = Array("vbOKOnly", "vbOK", "vbCancel", "vbAbort", "vbRetry", "vbIgnore", "vbYes", "vbNo")
a = MsgBox("Hello", vbAbortRetryIgnore)
MsgBox (ary(a))
End Sub
This works

instead of changing the language of the yes/no msgbox, you could instead create a user form which can accomplish the same task.
A suggestion of how you could do this:
Create a User Form in your MS Office file, and create two command boxes.
Change the boxes to be Yes/No in your desired language.
Insert a label, and you don't need to bother editing the text in it.
Now, you should add code to your user form. Here, I use the default names for each object/Userform.
Public bool As Boolean
Public Question As String
Private Sub UserForm_Activate()
Label1.Caption = Question
End Sub
Private Sub CommandButton1_Click()
'Yes box
bool = True
Me.Hide
End Sub
Private Sub CommandButton2_Click()
'No box
bool = False
Me.Hide
End Sub
This code makes bool and Question publicly accessible to read/write to.
When the form is activated, it replaces the text in Label1 with whatever you set the variable Question to.
Clicking either yes or no will now return True or False based on your answer.
Next, let's create a basic function to call it.
Function yesno(Question As String)
UserForm1.Question = Question
UserForm1.Show
While UserForm1.Visible = True
DoEvents
Wend
yesno = UserForm2.bool
End Function
This function prompts the new UserForm to appear, and will return True/False after you answer.
Sub test()
Cells(1, 1) = yesno("Insert Question Here")
End Sub
Lastly, this code just tests that we successfully made a working function, and will place your answer(True/False) in the ActiveSheet's Cell(1,1)
Hope this helps, and I recommend reading up on userforms through the link mentioned in another answer: UserForms

Try using Userform, as explained in this link

Related

How to put data in the blank field of the dialog box

I created a tool that clicks an item on a webpage in IE, then the webpage dialog box pops up, I need to put data in the blank field of the dialog box using VBA.
I can't view the source code of the dialog box manually (right click). The webpage and URL are confidential, so I can't share that. I am using FindWindow function to find a webpage dialog box, and it returns the HWND value successfully. Here is my code:
Sub FindWebDialog()
Dim hwnd As Long
hwnd = FindWindow(vbNullString, "Live Payments -- Webpage Dialog")
If hwnd <> 0 Then
'get the htmldocument
Else
MsgBox "no dialog found"
End If
End Sub
I think that if I get the return value of the FindWindow, from there I can retrieve the source code of the webpage dialog box, then use it to find the exact location of the blank field. I would like to know how to get the source code of the webpage dialog box using the HWND.
It's not clear what actually is that dialog box. Is it a part of the webpage document, or opened within new IE popup window? Is it modal?
Please make a screenshot of the dialog box, so that both the webpage and the dialog box titles will be visible. You may scrub the sensitive characters on the screenshot (e. g. in paint), and then upload it.
Also try to examine opened IE windows using the below code:
Option Explicit
Sub Test()
Dim oWnd As Object
For Each oWnd In CreateObject("Shell.Application").Windows
On Error Resume Next
If TypeName(oWnd.Document) = "HTMLDocument" Then
Wait oWnd
Debug.Print "URL = " & oWnd.Document.Location
Debug.Print "HWND = " & oWnd.Hwnd
Debug.Print "Title = " & oWnd.Document.Title
Debug.Print "Error = " & Err.Number
Debug.Print
End If
Next
Debug.Print "Completed"
End Sub
Sub Wait(oIE As Object)
Do While oIE.Busy Or oIE.readyState <> 4
DoEvents
Loop
Do While oIE.Document.readyState <> "complete"
DoEvents
Loop
End Sub
Do the following steps: make actions the dialog box to appear, find HWND using the code you posted in the question, then run the code shown above and share the output.
Both of them, the screenshot and the output listing + FindWindow's HWND, should make things clearer.
Sorry not responding to you questions above, been searching other sites for help.
Using the code above, did not find the dialog box, the IE dialog box is opened when a link was click inside the IE parent window and it is modal. The problem is only findwindow can find the dialog box and findwindow only returns HWND(windows handle which is a Long Integer). I found some code getting the htmldocument of the dialog box using HWND as the reference. (below)
Private Type UUID
Data1 As Long
Data2 As Integer
Data3 As Integer
Data4(0 To 7) As Byte
End Type
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 EnumChildWindows Lib "user32" ( _
ByVal hWndParent As Long, _
ByVal lpEnumFunc As Long, _
lParam As Long) As Long
Private Declare Function RegisterWindowMessage Lib "user32" _
Alias "RegisterWindowMessageA" ( _
ByVal lpString As String) As Long
Private Declare Function SendMessageTimeout Lib "user32" _
Alias "SendMessageTimeoutA" ( _
ByVal hWnd As Long, _
ByVal msg As Long, _
ByVal wParam As Long, _
lParam As Any, _
ByVal fuFlags As Long, _
ByVal uTimeout As Long, _
lpdwResult As Long) As Long
Private Const SMTO_ABORTIFHUNG = &H2
Private Declare Function ObjectFromLresult Lib "oleacc" ( _
ByVal lResult As Long, _
riid As UUID, _
ByVal wParam As Long, _
ppvObject As Any) As Long
Private Declare Function FindWindow Lib "user32" _
Alias "FindWindowA" ( _
ByVal lpClassName As String, _
ByVal lpWindowName As String) As Long
Public Function IEDOMFromhWnd(ByVal hWnd As Long) As IHTMLDocument
Dim IID_IHTMLDocument As UUID
Dim hWndChild As Long
Dim lRes As Long
Dim lMsg As Long
Dim hr As Long
If hWnd <> 0 Then
If Not IsIEServerWindow(hWnd) Then
' Find a child IE server window
EnumChildWindows hWnd, AddressOf EnumChildProc, hWnd
End If
If hWnd <> 0 Then
' Register the message
lMsg = RegisterWindowMessage("WM_HTML_GETOBJECT")
' Get the object pointer
Call SendMessageTimeout(hWnd, lMsg, 0, 0, _
SMTO_ABORTIFHUNG, 1000, lRes)
If lRes Then
' Initialize the interface ID
With IID_IHTMLDocument
.Data1 = &H626FC520
.Data2 = &HA41E
.Data3 = &H11CF
.Data4(0) = &HA7
.Data4(1) = &H31
.Data4(2) = &H0
.Data4(3) = &HA0
.Data4(4) = &HC9
.Data4(5) = &H8
.Data4(6) = &H26
.Data4(7) = &H37
End With
' Get the object from lRes
hr = ObjectFromLresult(lRes, IID_IHTMLDocument, 0, IEDOMFromhWnd)
End If
End If
End If
End Function
Public Function IsIEServerWindow(ByVal hWnd As Long) As Boolean
Dim lRes As Long
Dim sClassName As String
'Initialize the buffer
sClassName = String$(100, 0)
'Get the window class name
lRes = GetClassName(hWnd, sClassName, Len(sClassName))
sClassName = Left$(sClassName, lRes)
IsIEServerWindow = StrComp(sClassName, _
"Internet Explorer_Server", _
vbTextCompare) = 0
End Function
And use it this code to retrieve the htmldocument so I can search for the corresponding element of a text field that I need.
Sub HtmlDocFromHandle()
Dim myHandle As Long, iHtml2 As IHTMLDocument2
Dim ieobj As Object
myHandle = FindWindow(vbNullString, "TITLE OF THE WINDOW")
If myHandle <> 0 Then
Set ihtml2 = IEDOMFromhWnd(hForm)
Set ieobj = ihtml2.activeElement
Debug.Print ieobj.document
Else
MsgBox "Window not found"
End If
End Function

InputBox Cancel different from vbNullString (null)

I want to use an InputBox for checking password.
If the user presses "OK" without data entry, the InputBox should run again, and if the user pressed "Cancel" or "ESC", corporate subroutine have exit.
How can I recognize "ESC" or "Cancel" input, different from just "null" or empty?
And how specially do that for my customize created Input box with API, so for changing key-pressed shown as "*" in password input, named as InputBoxDk:
'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
Private Declare Sub sapiSleep Lib "kernel32" _
Alias "Sleep" _
(ByVal dwMilliseconds 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
'// Make it public = avail to ALL Modules
'// Lets simulate the VBA Input Function
Public Function InputBoxDK(Prompt As String, Optional Title As String, _
Optional Default As String, _
Optional Xpos As Long, _
Optional Ypos As Long, _
Optional Helpfile As String, _
Optional Context As Long) As String
Dim lngModHwnd As Long, lngThreadID As Long
'// Lets handle any Errors JIC! due to HookProc> App hang!
On Error GoTo ExitProperly
lngThreadID = GetCurrentThreadId
lngModHwnd = GetModuleHandle(vbNullString)
hHook = SetWindowsHookEx(WH_CBT, AddressOf NewProc, lngModHwnd, lngThreadID)
If Xpos Then
InputBoxDK = InputBox(Prompt, Title, Default, Xpos, Ypos, Helpfile, Context)
Else
InputBoxDK = InputBox(Prompt, Title, Default, , , Helpfile, Context)
End If
ExitProperly:
UnhookWindowsHookEx hHook
End Function
Sub TestDKInputBox()
Dim x
x = InputBoxDK("Type your password here.", "Password Required")
If x = "" Then End
If x <> "yourpassword" Then
MsgBox "You didn't enter a correct password."
End
End If
MsgBox "Welcome Creator!", vbExclamation
End Sub
Code reference: http://www.ozgrid.com
The Application.InputBox() returns False on Cancel or Esc, where InputBox() returns "".
Sub ProcedureName()
Dim response As Variant
Do Until Len(Trim(response)) > 0
response = Application.InputBox("Type something: ", "InputBox")
Loop
If response = vbFalse Then ' in case the use press "Cancel"
MsgBox "Pressed Cancel"
End If
End Sub
InputBox("prompt", "title", "default")
I can't test it, but If the user clicks OK the result should be "default". If something else is clicked the result should be "". If the user clears the input and clicks OK, the result is "" too. There is no way to make sure that OK was clicked in a InputBox, so you might need a custom UserForm for that.
How can I recognize "ESC" or "Cancel" input, different from just "null" or empty?
It's not quite documented, but a cancelled inputbox does not return just any "" empty string:
Debug.Print StrPtr("") ' returns some address
Debug.Print StrPtr(vbNullString) ' returns 0
The problem is that comparing vbNullString with "" will return True.
So the trick is to validate the StrPtr of the returned value:
Dim result As String
result = InputBox(...)
If StrPtr(result) = 0 Then
' definitely cancelled
Exit Sub
End If
If result = vbNullString Then
' legit empty string
'...
Else
' non-empty string
'...
End If
This solution works in VB6, as well as in any VBA host.

Hide characters in macro for password control

I have created a macro to insert an image, when an individual presses a button on the spreadsheet the below macro will run and a message box will appear for the individual to input a password, if correct the image will be inserted. This works fine but i would like the message box to hide the password with stars e.g. ********
Here is the current Macro:
Sub M_Reeve()
'Create the password message box
Dim Answer As String
Answer = InputBox("Input Operator Stamp Password", "Password")
If Answer = "Martin" Then
'Run the copy and paste "Stamp1" macro from module 2
Stamp1
'return an error if wrong password
Else: MsgBox "Wrong password", vbCritical + vbOKCancel, "Incorrect Password"
End If
End Sub
Thanks in advance
This work for me in Excel 2010 32bit.
Create new Module and Paste this 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
Then in your code replace InputBox with InputBoxDK
I found this code in other site in the net and as I remember it was by #Siddharth Rout.

VBA Password Input with Cancel Function

I have been using the standard password textbox written by Daniel Klann (http://www.ozgrid.com/forum/showthread.php?t=72794) to hide the password inputs.
The main problem is that the standard InputBox returns empty fields and cancel the same way. Application.InputBox however is capable of returning a False on cancel.
Updating Daniel Klann's script to work with the Application.InputBox is beyond me. How would this be done?
Here is Daniel's code:
Option Explicit
'////////////////////////////////////////////////////////////////////
'Password masked inputbox
'Allows you to hide characters entered in a VBA Inputbox.
'
'Code written by Daniel Klann
'http://www.danielklann.com/
'March 2003
'// Kindly permitted to be amended
'// Amended by Ivan F Moala
'// http://www.xcelfiles.com
'// April 2003
'// Works for Xl2000+ due the AddressOf Operator
'////////////////////////////////////////////////////////////////////
'******************** CALL FROM FORM *********************************
' Dim pwd As String
'
' pwd = InputBoxDK("Please Enter Password Below!", "Database Administration Security Form.")
'
' 'If no password was entered.
' If pwd = "" Then
' MsgBox "You didn't enter a password! You must enter password to 'enter the Administration Screen!" _
' , vbInformation, "Security Warning"
' End If
'**************************************
'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
'// Make it public = avail to ALL Modules
'// Lets simulate the VBA Input Function
Public Function InputBoxDK(Prompt As String, Optional Title As String, _
Optional Default As String, _
Optional Xpos As Long, _
Optional Ypos As Long, _
Optional Helpfile As String, _
Optional Context As Long) As String
Dim lngModHwnd As Long, lngThreadID As Long
'// Lets handle any Errors JIC! due to HookProc> App hang!
On Error Goto ExitProperly
lngThreadID = GetCurrentThreadId
lngModHwnd = GetModuleHandle(vbNullString)
hHook = SetWindowsHookEx(WH_CBT, AddressOf NewProc, lngModHwnd, lngThreadID)
If Xpos Then
InputBoxDK = InputBox(Prompt, Title, Default, Xpos, Ypos, Helpfile, Context)
Else
InputBoxDK = InputBox(Prompt, Title, Default, , , Helpfile, Context)
End If
ExitProperly:
UnhookWindowsHookEx hHook
End Function
the standard InputBox returns empty fields and cancel the same way
No it does not. It returns a null pointer (vbNullString) on cancel and an empty string ("") for empty input.
Dim s As String
s = InputBox("Test")
If StrPtr(s) = 0 Then
'Cancel pressed
Else
'Ok pressed
End If
Because InputBoxDK returns the InputBox's value unchanged, same logic applies to it.

VBA How to force a function to Return when a Form Button is pressed

I thought this would be simple, but it is proving quite difficult. Any advice or ideas would be appretiated.
I have a form in Excel that if a certain button is pressed I need the user to enter a password before the code for that button is run.
I could just use a inputbox, but that will allow anyone else to see the password when it is typed in. So I want to use a second form with a textbox and set it's PasswordChar parameter to *
Here is the problem. I want to use code like this
if checkPassword("Please enter your password") = False then exit sub
checkPassword is a function that takes a string as a parameter. This function opens a form and puts the message in to a lable. The user should enter the password and click OK.
the sub btnOK_Click() should check the password is correct and then force the function that opened the form to return True if the password was OK or False is the password was incorrect.
I just cant work out how to force the function to return. I have tried setting a global variable to either True or False when the user click OK and then unloading the form. This makes the Function return, but it also resets all the global variables set by the form.
Here is my function that calls the form
Function checkPassword(message As String) As Boolean
frmPassword.Show
frmPassword.passwordMsg.Caption = message
'passwordStatus is a global variable
If passwordStatus = True Then checkPassword = True Else checkPassword = False
End Function
Here is the sub linked to the forms OK button:
Private Sub passwordok_Click()
If Me.passwordtext.Text = "password" Then
passwordStatus = True
Else
passwordStatus = False
End If
Unload Me
End Sub
I could just use a inputbox, but that will allow anyone else to see the password when it is typed in. So I want to use a second form with a textbox and set it's PasswordChar parameter to *
Here is something from my database.
DISCLAIMER: I DIDN'T WRITE THIS AND I DON'T REMEMBER WHO WROTE THIS
USAGE:
Private Sub passwordok_Click()
Dim Prompt, password As String
Prompt = "Please enter your password."
password = InputBoxDK(Prompt)
MsgBox password '<~~ Do whatever you want to do with this
End Sub
IN A MODULE
Option Explicit
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$(256, " ")
lngBuffer = 255
'A window has been activated
If lngCode = HCBT_ACTIVATE Then
RetVal = GetClassName(wParam, strClassName, lngBuffer)
'Class name of the Inputbox
If Left$(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
SNAPSHOT
Returning a value from a dialog is a common task & pretty simple to do.
The simplest pattern is to put the function in the dialog form itself and have that function show its host form modally.
Private passwordStatus As Boolean
Function checkPassword(message As String) As Boolean
'//setup the form
Me.passwordMsg.Caption = message
'//show the form modally, this will not return until the form is unloaded
'//i.e. when the button is clicked; so values in private variable are still valid
Me.Show vbModal
'//form is unloaded (via unload me or a close) return the value;
checkPassword = passwordStatus
End Function
Private Sub passwordok_Click()
passwordStatus = Me.passwordtext.Text = "password"
Unload Me
End Sub
Used as
passworkOk = frmPassword.checkPassword("enter your blabla")