frmlogin.frm

《超市进销存管理系统的开发与实现》 2、开发工具 Microsoft Visual Basic 6.0 3、运行环境 （1）、硬件环境 486DX/66MHz或更高

VERSION 5.00
Begin VB.Form frmLogin 
   Appearance      =   0  'Flat
   BackColor       =   &H80000005&
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "登入"
   ClientHeight    =   3120
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   4095
   Icon            =   "frmLogin.frx":0000
   LinkTopic       =   "Form1"
   LockControls    =   -1  'True
   MaxButton       =   0   'False
   MinButton       =   0   'False
   Picture         =   "frmLogin.frx":22A2
   ScaleHeight     =   3120
   ScaleWidth      =   4095
   ShowInTaskbar   =   0   'False
   StartUpPosition =   2  '屏幕中心
   Tag             =   "1032"
   Begin VB.CommandButton cmdCancel 
      Appearance      =   0  'Flat
      Cancel          =   -1  'True
      Caption         =   "取消"
      Height          =   360
      Left            =   2760
      TabIndex        =   4
      Tag             =   "1036"
      Top             =   2520
      Width           =   1140
   End
   Begin VB.CommandButton cmdOK 
      Appearance      =   0  'Flat
      Caption         =   "确定"
      Default         =   -1  'True
      Height          =   360
      Left            =   240
      TabIndex        =   3
      Tag             =   "1035"
      Top             =   2520
      Width           =   1140
   End
   Begin VB.TextBox txtPassword 
      BackColor       =   &H00FFFFC0&
      Height          =   270
      IMEMode         =   3  'DISABLE
      Left            =   1425
      PasswordChar    =   "*"
      TabIndex        =   2
      Top             =   645
      Width           =   2325
   End
   Begin VB.TextBox txtUserName 
      BackColor       =   &H00FFFFC0&
      Height          =   270
      Left            =   1425
      TabIndex        =   1
      Top             =   240
      Width           =   2325
   End
   Begin VB.Label lblLabels 
      BackColor       =   &H00FFFFC0&
      Caption         =   "密  码(&P):"
      Height          =   255
      Index           =   1
      Left            =   345
      TabIndex        =   0
      Tag             =   "1034"
      Top             =   660
      Width           =   1080
   End
   Begin VB.Label lblLabels 
      BackColor       =   &H00FFFFC0&
      Caption         =   "用户名(&U):"
      Height          =   255
      Index           =   0
      Left            =   345
      TabIndex        =   5
      Tag             =   "1033"
      Top             =   270
      Width           =   1080
   End
End
Attribute VB_Name = "frmLogin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Private Declare Function GetUserName Lib "advapi32.dll" Alias "GetUserNameA" (ByVal lpbuffer As String, nSize As Long) As Long

Public OK As Boolean
Dim m_Admin As New clsAdmin
Dim m_nErrCount As Integer


Private Sub Form_Load()
  m_nErrCount = 0
End Sub


Private Sub cmdCancel_Click()
  OK = False
  Me.Hide
End Sub

Private Sub cmdOK_Click()
  'ToDo: 创建测试密码是否正确
  '检查正确密码
  Dim Account As String
  Dim Pwd As String
  Account = RealString(txtUserName.Text)
  Pwd = RealString(txtPassword.Text)
  '判断密码是否正确
  If Not m_Admin.CheckPwd(Account, Pwd) Then
    m_nErrCount = m_nErrCount + 1
    If m_nErrCount >= 3 Then
      MsgBox "输入密码错误次数太多，请稍后重试", vbExclamation
      End
    End If
    MsgBox "密码错误，再试一次！还有 " & 3 - m_nErrCount & " 次机会，注意密码区分大小写", vbCritical, "登录"
    txtPassword.SetFocus
    txtPassword.SelStart = 0
    txtPassword.SelLength = Len(txtPassword.Text)
  Else
    OK = True
    g_Account = Account
    Me.Hide
  End If
  
End Sub

Private Sub Label1_Click()

End Sub