Visual Basic Source Code/Visual Basic Source Code.iso/vbsource/manyth31/password.frm

Text File | 1994-03-17 | 6KB | 207 lines

VERSION 2.00
Begin Form Password
   Caption         =   "Form1"
   ClientHeight    =   2355
   ClientLeft      =   3180
   ClientTop       =   2580
   ClientWidth     =   4785
   Height          =   2760
   Left            =   3120
   LinkTopic       =   "Form1"
   ScaleHeight     =   2355
   ScaleWidth      =   4785
   Top             =   2235
   Width           =   4905
   Begin CommandButton Cancel
      Caption         =   "Cancel"
      FontBold        =   -1  'True
      FontItalic      =   0   'False
      FontName        =   "Times New Roman"
      FontSize        =   12
      FontStrikethru  =   0   'False
      FontUnderline   =   0   'False
      Height          =   465
      Left            =   2790
      TabIndex        =   5
      Top             =   1665
      Width           =   1185
   End
   Begin CommandButton OK
      Caption         =   "OK"
      FontBold        =   -1  'True
      FontItalic      =   0   'False
      FontName        =   "Times New Roman"
      FontSize        =   12
      FontStrikethru  =   0   'False
      FontUnderline   =   0   'False
      Height          =   465
      Left            =   1170
      TabIndex        =   4
      Top             =   1665
      Width           =   1005
   End
   Begin TextBox NewPassword2
      FontBold        =   -1  'True
      FontItalic      =   0   'False
      FontName        =   "Times New Roman"
      FontSize        =   12
      FontStrikethru  =   0   'False
      FontUnderline   =   0   'False
      Height          =   420
      Left            =   2655
      PasswordChar    =   "*"
      TabIndex        =   3
      Text            =   "Text3"
      Top             =   1035
      Width           =   2040
   End
   Begin TextBox NewPassword
      FontBold        =   -1  'True
      FontItalic      =   0   'False
      FontName        =   "Times New Roman"
      FontSize        =   12
      FontStrikethru  =   0   'False
      FontUnderline   =   0   'False
      Height          =   420
      Left            =   2655
      PasswordChar    =   "*"
      TabIndex        =   2
      Text            =   "Text2"
      Top             =   630
      Width           =   2040
   End
   Begin TextBox OldPassword
      FontBold        =   -1  'True
      FontItalic      =   0   'False
      FontName        =   "Times New Roman"
      FontSize        =   12
      FontStrikethru  =   0   'False
      FontUnderline   =   0   'False
      Height          =   420
      Left            =   2655
      PasswordChar    =   "*"
      TabIndex        =   1
      Text            =   "Text1"
      Top             =   225
      Width           =   2040
   End
   Begin Label Label3
      Caption         =   "New Password Retyped:"
      FontBold        =   -1  'True
      FontItalic      =   0   'False
      FontName        =   "Times New Roman"
      FontSize        =   12
      FontStrikethru  =   0   'False
      FontUnderline   =   0   'False
      Height          =   375
      Left            =   135
      TabIndex        =   7
      Top             =   1035
      Width           =   2670
   End
   Begin Label Label2
      Caption         =   "New Password:"
      FontBold        =   -1  'True
      FontItalic      =   0   'False
      FontName        =   "Times New Roman"
      FontSize        =   12
      FontStrikethru  =   0   'False
      FontUnderline   =   0   'False
      Height          =   285
      Left            =   180
      TabIndex        =   6
      Top             =   675
      Width           =   2760
   End
   Begin Label OldPasswordLabel
      Caption         =   "Old Password:"
      FontBold        =   -1  'True
      FontItalic      =   0   'False
      FontName        =   "Times New Roman"
      FontSize        =   12
      FontStrikethru  =   0   'False
      FontUnderline   =   0   'False
      Height          =   285
      Left            =   180
      TabIndex        =   0
      Top             =   270
      Width           =   2715
   End
End
Option Explicit

Sub Cancel_Click ()

  Hide 'make form invisible

End Sub

Sub Form_Load ()

    'clear fields
    OldPassword.Text = ""
    NewPassword.Text = ""
    NewPassword2.Text = ""

    'see if existing password
    If Passwd = "" Then
      OldPassword.Enabled = False
      OldPasswordLabel.Enabled = False
    End If

End Sub

Sub OK_Click ()

  Dim temp As String

  temp = OldPassword.Text
  OldPassword.Text = UnCase(temp)
  temp = NewPassword.Text
  NewPassword.Text = UnCase(temp)
  temp = NewPassword2.Text
  NewPassword2.Text = UnCase(temp)

  '1st verify old password
  If Passwd <> OldPassword.Text Then
    MsgBox "Old password incorrect", 48, "Change Password"
    Exit Sub
  End If

  'double check new password
  If NewPassword.Text <> NewPassword2.Text Then
    MsgBox "New password failed retype verify", 48, "Change Password"
    Exit Sub
  End If

  If Len(NewPassword.Text) > NUMCHARS Then
    MsgBox "New password too long" + Chr$(10) + "Maximum length " + Str$(NUMCHARS) + " chars", 48, "Change Password"
    Exit Sub
  End If

  Passwd = NewPassword.Text
  Unload Password 'unload form from memory

End Sub

Function UnCase (Text As String) As String

  Dim i As Integer, j As Integer, k As Integer, l As Integer
  Dim outstr As String

  'gets the unshifted ascii code for characters by
  'converting each to a virtual key code and then
  'converting back to ascii
  outstr = ""
  k = Len(Text)
  For i = 1 To k
    j = VkKeyScan(Asc(Mid$(Text, i, 1))) Mod 256 ' convert ascii to virtual key code
    l = MapVirtualKey(j, 2) ' convert virtual key code to ascii
    outstr = outstr + Chr$(l)
  Next i

  UnCase = outstr

End Function