'-------------------------------------------------------------------
'有输入掩码的 InputBox
'在 VBA InputBox 可以隐藏输入的字符
'
'作者：Daniel Klann
'日期：2003年3月
'译者：cg1 (http://access911.net)
'环境：Windows XP + Access 2003 测试通过
'-------------------------------------------------------------------
'需要引用 WIN32 API
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 '定义 API 中需要引用的常数
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$(256, " ")
lngBuffer = 255 If lngCode = HCBT_ACTIVATE Then '当前被激活的窗体
RetVal = GetClassName(wParam, strClassName, lngBuffer)
If Left$(strClassName, RetVal) = "#32770" Then '获取 InputBox 的类名
'用 * 星号替换文本框中显示的字符
'Asc("*") 可以替换，你可以用其他字符代替
SendDlgItemMessage wParam, &H1324, EM_SETPASSWORDCHAR, Asc("*"), &H0
End If End If '以下这行确保其他钩子能够被正确调用
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 Function test()
'按 ALT + F11 后插入一个模块，然后将所有代码 COPY 进去后，
'将光标停在这里，然后按 F5
MsgBox InputBoxDK("dfasd")
End Function
| 
1701945
