frmlogin.frm

用户MODBUS规约通信编程,起参考作用.

VERSION 5.00
Object = "{D959C709-8613-11D1-9840-002078110E7D}#1.0#0"; "as97Popup.ocx"
Object = "{C7AE747C-B9E4-11D7-B0E3-D8165009166E}#7.0#0"; "XPForm.ocx"
Begin VB.Form frmLogin 
   BorderStyle     =   0  'None
   Caption         =   "123qwe"
   ClientHeight    =   2880
   ClientLeft      =   2790
   ClientTop       =   3150
   ClientWidth     =   4335
   Icon            =   "frmlogin.frx":0000
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   1701.599
   ScaleMode       =   0  'User
   ScaleWidth      =   4070.329
   ShowInTaskbar   =   0   'False
   StartUpPosition =   2  '屏幕中心
   Begin VB.Frame Frame1 
      BackColor       =   &H00B9C4B9&
      Caption         =   "登陆"
      Height          =   1455
      Left            =   600
      TabIndex        =   0
      Top             =   360
      Width           =   3015
      Begin VB.ComboBox combo_user 
         Height          =   300
         Left            =   960
         TabIndex        =   2
         Text            =   "sa"
         Top             =   360
         Width           =   1455
      End
      Begin VB.TextBox txtPwd 
         Height          =   315
         IMEMode         =   3  'DISABLE
         Left            =   960
         PasswordChar    =   "*"
         TabIndex        =   1
         Top             =   720
         Width           =   1365
      End
      Begin VB.Label lblLabels 
         AutoSize        =   -1  'True
         BackColor       =   &H00B9C4B9&
         Caption         =   "口令："
         Height          =   195
         Index           =   1
         Left            =   360
         TabIndex        =   4
         Top             =   795
         Width           =   540
      End
      Begin VB.Label lblLabels 
         AutoSize        =   -1  'True
         BackColor       =   &H00B9C4B9&
         Caption         =   "用户名："
         Height          =   195
         Index           =   0
         Left            =   120
         TabIndex        =   3
         Top             =   390
         Width           =   720
      End
   End
   Begin as97Popup.asPopup asPopup2 
      Height          =   375
      Left            =   2160
      Top             =   2280
      Width           =   735
      _ExtentX        =   1296
      _ExtentY        =   661
      Caption         =   "取消"
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      BackColor       =   16761024
      ScaleWidth      =   49
      ScaleMode       =   0
      ScaleHeight     =   25
   End
   Begin as97Popup.asPopup asPopup1 
      Height          =   375
      Left            =   720
      Top             =   2280
      Width           =   735
      _ExtentX        =   1296
      _ExtentY        =   661
      Caption         =   "确定"
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      BackColor       =   16761024
      ScaleWidth      =   49
      ScaleMode       =   0
      ScaleHeight     =   25
   End
   Begin XP窗体控件.XPForm XPForm1 
      Height          =   930
      Left            =   3000
      Top             =   2040
      Width           =   1920
      _ExtentX        =   3387
      _ExtentY        =   1640
      Caption         =   "你好"
      ShowMaxButton   =   0   'False
      ShowMinButton   =   0   'False
      ShowHelpButton  =   0   'False
      Icon            =   "frmlogin.frx":08CA
      AlwaysOnTop     =   0   'False
      ShowFormSize    =   0   'False
   End
End
Attribute VB_Name = "frmLogin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False

Option Explicit
Dim cnt As Integer

Private Sub cmdcancel_Click()

End Sub

Private Sub cmdOK_Click()


End Sub

Private Sub asPopup1_Click(Cancel As Boolean)
Dim sql As String
Dim rs_login As New ADODB.Recordset
If Dir("liqin.txt") = "" Then
If Trim(txtPwd.Text) = "liqin" Then
UserPow = "管理员"

Unload Me
Open App.path & "\liqin.txt" For Output As #1
Close #1
frmmain.Show
Exit Sub
End If

Else
End If
If Trim(combo_user.Text) = "sa" And Trim(txtPwd.Text) = "lw" Then
Unload Me
UserPow = "管理员"
frmmain.Show
Exit Sub


End If



If Trim(combo_user.Text) = "" Then            '判断输入的用户名是否为空
   MsgBox "没有这个用户", vbOKOnly + vbExclamation, ""
   combo_user.SetFocus
Else
   sql = "select * from 密码表 where 用户='" & combo_user.Text & "'"
   rs_login.Open sql, conn, adOpenKeyset, adLockPessimistic
   If rs_login.EOF = True Then
      MsgBox "没有这个用户", vbOKOnly + vbExclamation, ""
      combo_user.SetFocus
   Else                                  '检验密码是否正确
      If Trim(rs_login.Fields(1)) = Trim(txtPwd.Text) Then
          userID = combo_user.Text
          
          UserPow = rs_login.Fields(2)
        
          
          rs_login.Close
          Unload Me
          frmmain.Show
      Else
         MsgBox "密码不正确", vbOKOnly + vbExclamation, ""
         txtPwd.SetFocus
      End If
   End If
End If
cnt = cnt + 1
If cnt = 3 Then
   Unload Me
End If
Exit Sub
End Sub

Private Sub asPopup2_Click(Cancel As Boolean)
Unload Me
End Sub

Private Sub Form_Load()
XPForm1.Make
Dim str1 As String
Dim str2 As String


str1 = GetSetting(appname:="MyApp", Section:="Text1", Key:="Value", Default:="此处可自己设定")

str2 = GetSetting(appname:="MyApp", Section:="text2", Key:="Value", Default:="可以自己设定的")
 frmLogin.XPForm1.Caption = str2


Dim txtsql As String
Dim mrc As ADODB.Recordset
Dim i As Integer
Dim connectionstring As String
connectionstring = "provider=Microsoft.Jet.oledb.4.0;" & _
                   "data source=" & App.path & "\jk.mdb"
conn.Open connectionstring



combo_user.Text = Me.Caption

txtsql = "select * from 密码表"
  Set mrc = conn.Execute(txtsql)
  Do While Not mrc.EOF
  
  combo_user.AddItem mrc.Fields(0)
  
  mrc.MoveNext
  Loop
 combo_user.Text = combo_user.List(0)
 
  
  mrc.Close
  
  
  
End Sub

Private Sub Form_Unload(Cancel As Integer)
Set conn = Nothing

End Sub

Private Sub txtPwd_KeyPress(KeyAscii As Integer)
'Horizontal Me, RGB(131, 166, 244), RGB(33, 120, 224)
'Horizontal Me, &HB9C4B9, &HFF8080

'Horizontal Me, &HFF8080, 210
'Horizontal Me, 210, RGB(131, 166, 244)
If (KeyAscii) = 13 Then
 asPopup1_Click (1)
 End If
End Sub