InputBox with Password Characters(转帖)

最新推荐文章于 2021-03-01 23:09:00 发布

iteye_19871

最新推荐文章于 2021-03-01 23:09:00 发布

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文章标签： ASP

本文提供了一个使用VBScript创建密码输入框的示例代码。该代码通过调用Windows API来实现密码字符的替换显示，并利用定时器来管理密码输入过程。此示例适用于学习如何在VBScript中处理用户输入的敏感信息。

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The following codesare from http://www.freevbcode.com/ShowCode.asp?ID=1214

'Add a form with commandbutton:

Private Sub Command1_Click()
Dim ret As String
SetTimer hwnd, NV_INPUTBOX, 10, AddressOf TimerProc
ret = InputBox("Enter Password")
MsgBox ret
End Sub

'Add a standard modual:

'PUT BELOW DECLARATIONS IN A .BAS MODULE

Option Explicit

Private Declare Function FindWindow Lib "user32" Alias _
"FindWindowA" (ByVal lpClassName As String, _
ByVal lpWindowName As String) As Long

Private Declare Function FindWindowEx Lib "user32" Alias _
"FindWindowExA" (ByVal hWnd1 As Long, ByVal hWnd2 As Long, _
ByVal lpsz1 As String, ByVal lpsz2 As String) As Long

Public 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 nIDEvent As Long) As Long

Private Declare Function SendMessage Lib "user32" Alias _
"SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, _
ByVal wParam As Long, lParam As Any) As Long

Const EM_SETPASSWORDCHAR = &HCC
Public Const NV_INPUTBOX As Long = &H5000&

Public Sub TimerProc(ByVal hwnd As Long, ByVal uMsg As Long, ByVal idEvent As Long, ByVal dwTime As Long)

Dim EditHwnd As Long

' CHANGE APP.TITLE TO YOUR INPUT BOX TITLE.

EditHwnd = FindWindowEx(FindWindow("#32770", App.Title), _
0, "Edit", "")

Call SendMessage(EditHwnd, EM_SETPASSWORDCHAR, Asc("*"), 0)
KillTimer hwnd, idEvent
End Sub