frmlogin.frm

用microsoft vb6.0写的上班考勤系统！

VERSION 5.00
Begin VB.Form frmLogin 
   BackColor       =   &H00C0C0C0&
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "登录窗口 "
   ClientHeight    =   2820
   ClientLeft      =   2835
   ClientTop       =   3480
   ClientWidth     =   5145
   FillColor       =   &H00C0FFFF&
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   1666.149
   ScaleMode       =   0  'User
   ScaleWidth      =   4830.876
   ShowInTaskbar   =   0   'False
   StartUpPosition =   2  '屏幕中心
   Begin VB.TextBox Text1 
      Height          =   375
      Left            =   480
      TabIndex        =   7
      Text            =   "c"
      Top             =   2280
      Visible         =   0   'False
      Width           =   735
   End
   Begin VB.CommandButton cmdok 
      Caption         =   "确定"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15.75
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   2760
      TabIndex        =   6
      Top             =   2280
      Width           =   1095
   End
   Begin VB.CommandButton cmdCancel 
      Caption         =   "取消"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15.75
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   3840
      TabIndex        =   5
      Top             =   2280
      Width           =   1095
   End
   Begin VB.TextBox txtUserName 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   36
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   705
      Left            =   2010
      TabIndex        =   1
      Top             =   135
      Width           =   2925
   End
   Begin VB.TextBox txtPassword 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   36
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   705
      IMEMode         =   3  'DISABLE
      Left            =   2010
      PasswordChar    =   "*"
      TabIndex        =   3
      Top             =   1005
      Width           =   2925
   End
   Begin VB.Label Label1 
      BackStyle       =   0  'Transparent
      Caption         =   "(请输入工号及密码)"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FF0000&
      Height          =   375
      Left            =   1320
      TabIndex        =   4
      Top             =   1800
      Width           =   2655
   End
   Begin VB.Label lblLabels 
      Alignment       =   2  'Center
      Appearance      =   0  'Flat
      BackColor       =   &H00C0C0C0&
      Caption         =   "工号(G):"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15.75
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H80000008&
      Height          =   510
      Index           =   0
      Left            =   105
      TabIndex        =   0
      Top             =   270
      Width           =   1560
   End
   Begin VB.Label lblLabels 
      Alignment       =   2  'Center
      Appearance      =   0  'Flat
      BackColor       =   &H00C0C0C0&
      Caption         =   "密码(&P):"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15.75
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H80000008&
      Height          =   495
      Index           =   1
      Left            =   105
      TabIndex        =   2
      Top             =   1200
      Width           =   1680
   End
End
Attribute VB_Name = "frmLogin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Declare Function GetVolumeInformation Lib _
"kernel32.dll" Alias "GetVolumeInformationA" (ByVal _
lpRootPathName As String, ByVal lpVolumeNameBuffer As _
String, ByVal nVolumeNameSize As Integer, _
lpVolumeSerialNumber As Long, lpMaximumComponentLength _
As Long, lpFileSystemFlags As Long, ByVal _
lpFileSystemNameBuffer As String, ByVal _
nFileSystemNameSize As Long) As Long
  

Option Explicit
Public Cnnkaoqin As ADODB.Connection
Public Rstkaoqin As ADODB.Recordset

Dim Rstpw As ADODB.Recordset
Public LoginSucceeded As Boolean

Private Sub cmdCancel_Click()
    '设置全局变量为 false
    '不提示失败的登录
    LoginSucceeded = False
    Me.Hide
End Sub

Private Sub cmdOK_Click()
    '检查正确的密码
    Set Rstpw = New ADODB.Recordset
      Rstpw.CursorLocation = adUseClient
      Rstpw.CursorType = adOpenDynamic
      Rstpw.LockType = adLockBatchOptimistic
      Rstpw.Open "select * from userinfo " _
      & "where Gonghao='" + txtUserName.Text + "' and Mima='" + txtPassword.Text + "' ", Cnnkaoqin, , , adCmdText
    
    
    If Rstpw.EOF = False Then
        '将代码放在这里传递
        '成功到 calling 函数
        '设置全局变量时最容易的
        LoginSucceeded = True
        jiwei = Rstpw.Fields(3)
        MingZi = Rstpw.Fields(0)
        Me.Hide
        
    Else
        MsgBox "无效的密码，请重试!", , "登录"
        txtPassword.SetFocus
        SendKeys "{Home}+{End}"
    End If
End Sub
Function GetSerialNumber(Strdrive As String) As Long

Dim SerialNum As Long

Dim Res As Long

Dim Temp1, AA As String

Dim Temp2 As String

Temp1 = String$(255, Chr$(0))

Temp2 = String$(255, Chr$(0))

Res = GetVolumeInformation(Strdrive, Temp1, _
Len(Temp1), SerialNum, 0, 0, Temp2, Len(Temp2))
'AA = SerialNum
GetSerialNumber = SerialNum

End Function
Private Sub Form_Load()
Dim SerialNum, Strdrive As Long
Dim Res As Long
Dim Temp1, AA As String
Dim Temp2 As String
  
  Set Cnnkaoqin = New ADODB.Connection
  Cnnkaoqin.Open "kaoqin", "andy", "1234"
  'Set Rstkaoqin = New ADODB.Recordset
  'Rstkaoqin.Open "select * from systemno ", Cnnkaoqin, adOpenStatic, adLockBatchOptimistic, adCmdText
  'If Not Rstkaoqin.EOF Then
  '   AA = GetSerialNumber(Text1.Text + ":\")
  '   If Rstkaoqin.Fields(0) <> AA Then
  '     MsgBox "不能在别的电脑运行该程序!", vbOKOnly, "警告"
  '     Unload Me
  '     End
  '     Exit Sub
       
  '   End If
  'End If
  'cmdok.SetShape bsRoundRect
  'cmdCancel.SetShape bsRoundRect
  'Rstkaoqin.Open "select * from Userinfo"
  
End Sub

Private Sub txtPassword_KeyUp(KeyCode As Integer, Shift As Integer)
If KeyCode = 13 Or KeyCode = 40 Then
    cmdok.SetFocus
End If
End Sub

Private Sub txtUserName_KeyUp(KeyCode As Integer, Shift As Integer)
If KeyCode = 13 Or KeyCode = 40 Then
    txtPassword.SetFocus
End If
End Sub