我知道您已将其锁定以获取新答案，但上述代码存在一些问题，主要是我在 Office 64 位 (VBA7) 中工作。然而，我也这样做了，这样代码就可以在当前的 Excel 实例中工作，并添加了更多的错误检查并将其格式化以粘贴到单独的模块中，只UnlockProject暴露方法。
为了全面披露，我真的从这篇文章中的代码开始，尽管它是一个主题的变体。
该代码还显示了条件编译常量，因此它应该同时兼容 32 位和 64 位风格的 Excel。我用这个页面来帮助我解决这个问题。
无论如何，这是代码。希望有人觉得它有用：
Option Explicit
#If VBA7 Then
Private Declare PtrSafe Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hwndParent As LongPtr, ByVal hwndChildAfter As LongPtr, ByVal lpszClass As String, ByVal lpszWindow As String) As LongPtr
Private Declare PtrSafe Function GetParent Lib "user32" (ByVal hWnd As LongPtr) As LongPtr
Private Declare PtrSafe Function GetDlgItem Lib "user32" (ByVal hDlg As LongPtr, ByVal nIDDlgItem As Long) As LongPtr ' nIDDlgItem = int?
Private Declare PtrSafe Function GetDesktopWindow Lib "user32" () As LongPtr
Private Declare PtrSafe Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hWnd As LongPtr, ByVal Msg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Declare PtrSafe Function SetFocusAPI Lib "user32" Alias "SetFocus" (ByVal hWnd As LongPtr) As LongPtr
Private Declare PtrSafe Function LockWindowUpdate Lib "user32" (ByVal hWndLock As LongPtr) As Long
Private Declare PtrSafe Function SetTimer Lib "user32" (ByVal hWnd As LongPtr, ByVal nIDEvent As LongPtr, ByVal uElapse As Long, ByVal lpTimerFunc As LongPtr) As LongPtr
Private Declare PtrSafe Function KillTimer Lib "user32" (ByVal hWnd As LongPtr, ByVal uIDEvent As LongPtr) As Long
Private Declare PtrSafe Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
#Else
Private Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hwndParent As Long, ByVal hwndChildAfter As Long, ByVal lpszClass As String, ByVal lpszWindow As String) As Long
Private Declare Function GetParent Lib "user32" (ByVal hWnd As Long) As Long
Private Declare Function GetDlgItem Lib "user32" (ByVal hDlg As Long, ByVal nIDDlgItem As Long) As Long ' nIDDlgItem = int?
Private Declare Function GetDesktopWindow Lib "user32" () As Long
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hWnd As Long, ByVal Msg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Declare Function SetFocusAPI Lib "user32" Alias "SetFocus" (ByVal hWnd As Long) As Long
Private Declare Function LockWindowUpdate Lib "user32" (ByVal hWndLock As Long) As Long
Private Declare Function SetTimer Lib "user32" (ByVal hWnd As Long, ByVal nIDEvent As Long, ByVal uElapse As Long, ByVal lpTimerFunc As Long) As Long
Private Declare Function KillTimer Lib "user32" (ByVal hWnd As Long, ByVal uIDEvent As Long) As Long
Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
#End If
Private Const WM_CLOSE As Long = &H10
Private Const WM_GETTEXT As Long = &HD
Private Const EM_REPLACESEL As Long = &HC2
Private Const EM_SETSEL As Long = &HB1
Private Const BM_CLICK As Long = &HF5&
Private Const TCM_SETCURFOCUS As Long = &H1330&
Private Const IDPassword As Long = &H155E&
Private Const IDOK As Long = &H1&
Private Const TimeoutSecond As Long = 2
Private g_ProjectName As String
Private g_Password As String
Private g_Result As Long
#If VBA7 Then
Private g_hwndVBE As LongPtr
Private g_hwndPassword As LongPtr
#Else
Private g_hwndVBE As Long
Private g_hwndPassword As Long
#End If
Sub Test_UnlockProject()
Select Case UnlockProject(ActiveWorkbook.VBProject, "Test")
Case 0: MsgBox "The project was unlocked"
Case 2: MsgBox "The active project was already unlocked"
Case Else: MsgBox "Error or timeout"
End Select
End Sub
Public Function UnlockProject(ByVal Project As Object, ByVal Password As String) As Long
#If VBA7 Then
Dim lRet As LongPtr
#Else
Dim lRet As Long
#End If
Dim timeout As Date
On Error GoTo ErrorHandler
UnlockProject = 1
' If project already unlocked then no need to do anything fancy
' Return status 2 to indicate already unlocked
If Project.Protection <> vbext_pp_locked Then
UnlockProject = 2
Exit Function
End If
' Set global varaibles for the project name, the password and the result of the callback
g_ProjectName = Project.Name
g_Password = Password
g_Result = 0
' Freeze windows updates so user doesn't see the magic happening :)
' This is dangerous if the program crashes as will 'lock' user out of Windows
' LockWindowUpdate GetDesktopWindow()
' Switch to the VBE
' and set the VBE window handle as a global variable
Application.VBE.MainWindow.Visible = True
g_hwndVBE = Application.VBE.MainWindow.hWnd
' Run 'UnlockTimerProc' as a callback
lRet = SetTimer(0, 0, 100, AddressOf UnlockTimerProc)
If lRet = 0 Then
Debug.Print "error setting timer"
GoTo ErrorHandler
End If
' Switch to the project we want to unlock
Set Application.VBE.ActiveVBProject = Project
If Not Application.VBE.ActiveVBProject Is Project Then GoTo ErrorHandler
' Launch the menu item Tools -> VBA Project Properties
' This will trigger the password dialog
' which will then get picked up by the callback
Application.VBE.CommandBars.FindControl(ID:=2578).Execute
' Loop until callback procedure 'UnlockTimerProc' has run
' determine run by watching the state of the global variable 'g_result'
' ... or backstop of 2 seconds max
timeout = Now() + TimeSerial(0, 0, TimeoutSecond)
Do While g_Result = 0 And Now() < timeout
DoEvents
Loop
If g_Result Then UnlockProject = 0
ErrorHandler:
' Switch back to the Excel application
AppActivate Application.Caption
' Unfreeze window updates
LockWindowUpdate 0
End Function
#If VBA7 Then
Private Function UnlockTimerProc(ByVal hWnd As LongPtr, ByVal uMsg As Long, ByVal idEvent As LongPtr, ByVal dwTime As Long) As Long
#Else
Private Function UnlockTimerProc(ByVal hWnd As Long, ByVal uMsg As Long, ByVal idEvent As Long, ByVal dwTime As Long) As Long
#End If
#If VBA7 Then
Dim hWndPassword As LongPtr
Dim hWndOK As LongPtr
Dim hWndTmp As LongPtr
Dim lRet As LongPtr
#Else
Dim hWndPassword As Long
Dim hWndOK As Long
Dim hWndTmp As Long
Dim lRet As Long
#End If
Dim lRet2 As Long
Dim sCaption As String
Dim timeout As Date
Dim timeout2 As Date
Dim pwd As String
' Protect ourselves against failure :)
On Error GoTo ErrorHandler
' Kill timer used to initiate this callback
KillTimer 0, idEvent
' Determine the Title for the password dialog
Select Case Application.LanguageSettings.LanguageID(msoLanguageIDUI)
' For the japanese version
Case 1041
sCaption = ChrW(&H30D7) & ChrW(&H30ED) & ChrW(&H30B8) & _
ChrW(&H30A7) & ChrW(&H30AF) & ChrW(&H30C8) & _
ChrW(&H20) & ChrW(&H30D7) & ChrW(&H30ED) & _
ChrW(&H30D1) & ChrW(&H30C6) & ChrW(&H30A3)
Case Else
sCaption = " Password"
End Select
sCaption = g_ProjectName & sCaption
' Set a max timeout of 2 seconds to guard against endless loop failure
timeout = Now() + TimeSerial(0, 0, TimeoutSecond)
Do While Now() < timeout
hWndPassword = 0
hWndOK = 0
hWndTmp = 0
' Loop until find a window with the correct title that is a child of the
' VBE handle for the project to unlock we found in 'UnlockProject'
Do
hWndTmp = FindWindowEx(0, hWndTmp, vbNullString, sCaption)
If hWndTmp = 0 Then Exit Do
Loop Until GetParent(hWndTmp) = g_hwndVBE
' If we don't find it then could be that the calling routine hasn't yet triggered
' the appearance of the dialog box
' Skip to the end of the loop, wait 0.1 secs and try again
If hWndTmp = 0 Then GoTo Continue
' Found the dialog box, make sure it has focus
Debug.Print "found window"
lRet2 = SendMessage(hWndTmp, TCM_SETCURFOCUS, 1, ByVal 0&)
' Get the handle for the password input
hWndPassword = GetDlgItem(hWndTmp, IDPassword)
Debug.Print "hwndpassword: " & hWndPassword
' Get the handle for the OK button
hWndOK = GetDlgItem(hWndTmp, IDOK)
Debug.Print "hwndOK: " & hWndOK
' If either handle is zero then we have an issue
' Skip to the end of the loop, wait 0.1 secs and try again
If (hWndTmp And hWndOK) = 0 Then GoTo Continue
' Enter the password ionto the password box
lRet = SetFocusAPI(hWndPassword)
lRet2 = SendMessage(hWndPassword, EM_SETSEL, 0, ByVal -1&)
lRet2 = SendMessage(hWndPassword, EM_REPLACESEL, 0, ByVal g_Password)
' As a check, get the text back out of the pasword box and verify it's the same
pwd = String(260, Chr(0))
lRet2 = SendMessage(hWndPassword, WM_GETTEXT, Len(pwd), ByVal pwd)
pwd = Left(pwd, InStr(1, pwd, Chr(0), 0) - 1)
' If not the same then we have an issue
' Skip to the end of the loop, wait 0.1 secs and try again
If pwd <> g_Password Then GoTo Continue
' Now we need to close the Project Properties window we opened to trigger
' the password input in the first place
' Like the current routine, do it as a callback
lRet = SetTimer(0, 0, 100, AddressOf ClosePropertiesWindow)
' Click the OK button
lRet = SetFocusAPI(hWndOK)
lRet2 = SendMessage(hWndOK, BM_CLICK, 0, ByVal 0&)
' Set the gloabal variable to success to flag back up to the initiating routine
' that this worked
g_Result = 1
Exit Do
' If we get here then something didn't work above
' Wait 0.1 secs and try again
' Master loop is capped with a longstop of 2 secs to terminate endless loops
Continue:
DoEvents
Sleep 100
Loop
Exit Function
' If we get here something went wrong so close the password dialog box (if we have a handle)
' and unfreeze window updates (if we set that in the first place)
ErrorHandler:
Debug.Print Err.Number
If hWndPassword <> 0 Then SendMessage hWndPassword, WM_CLOSE, 0, ByVal 0&
LockWindowUpdate 0
End Function
#If VBA7 Then
Function ClosePropertiesWindow(ByVal hWnd As LongPtr, ByVal uMsg As Long, ByVal idEvent As LongPtr, ByVal dwTime As Long) As Long
#Else
Function ClosePropertiesWindow(ByVal hWnd As Long, ByVal uMsg As Long, ByVal idEvent As Long, ByVal dwTime As Long) As Long
#End If
#If VBA7 Then
Dim hWndTmp As LongPtr
Dim hWndOK As LongPtr
Dim lRet As LongPtr
#Else
Dim hWndTmp As Long
Dim hWndOK As Long
Dim lRet As Long
#End If
Dim lRet2 As Long
Dim timeout As Date
Dim sCaption As String
' Protect ourselves against failure :)
On Error GoTo ErrorHandler
' Kill timer used to initiate this callback
KillTimer 0, idEvent
' Determine the Title for the project properties dialog
sCaption = g_ProjectName & " - Project Properties"
Debug.Print sCaption
' Set a max timeout of 2 seconds to guard against endless loop failure
timeout = Now() + TimeSerial(0, 0, TimeoutSecond)
Do While Now() < timeout
hWndTmp = 0
' Loop until find a window with the correct title that is a child of the
' VBE handle for the project to unlock we found in 'UnlockProject'
Do
hWndTmp = FindWindowEx(0, hWndTmp, vbNullString, sCaption)
If hWndTmp = 0 Then Exit Do
Loop Until GetParent(hWndTmp) = g_hwndVBE
' If we don't find it then could be that the calling routine hasn't yet triggered
' the appearance of the dialog box
' Skip to the end of the loop, wait 0.1 secs and try again
If hWndTmp = 0 Then GoTo Continue
' Found the dialog box, make sure it has focus
Debug.Print "found properties window"
lRet2 = SendMessage(hWndTmp, TCM_SETCURFOCUS, 1, ByVal 0&)
' Get the handle for the OK button
hWndOK = GetDlgItem(hWndTmp, IDOK)
Debug.Print "hwndOK: " & hWndOK
' If either handle is zero then we have an issue
' Skip to the end of the loop, wait 0.1 secs and try again
If (hWndTmp And hWndOK) = 0 Then GoTo Continue
' Click the OK button
lRet = SetFocusAPI(hWndOK)
lRet2 = SendMessage(hWndOK, BM_CLICK, 0, ByVal 0&)
' Set the gloabal variable to success to flag back up to the initiating routine
' that this worked
g_Result = 1
Exit Do
' If we get here then something didn't work above
' Wait 0.1 secs and try again
' Master loop is capped with a longstop of 2 secs to terminate endless loops
Continue:
DoEvents
Sleep 100
Loop
Exit Function
' If we get here something went wrong so unfreeze window updates (if we set that in the first place)
ErrorHandler:
Debug.Print Err.Number
LockWindowUpdate 0
End Function
