xsbook.frm

有读者和图书信息的添加查询,借还书等,先建立数据库和ODBC数据源

VERSION 5.00
Begin VB.Form frmlogin 
   Caption         =   "Login"
   ClientHeight    =   4710
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   6480
   LinkTopic       =   "Form1"
   ScaleHeight     =   4710
   ScaleWidth      =   6480
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton cmdCancel 
      Caption         =   "取消"
      Height          =   375
      Left            =   3600
      Style           =   1  'Graphical
      TabIndex        =   3
      Top             =   3720
      Width           =   1095
   End
   Begin VB.CommandButton cmdOk 
      Caption         =   "确定"
      Height          =   375
      Left            =   1560
      Style           =   1  'Graphical
      TabIndex        =   2
      Top             =   3720
      Width           =   1095
   End
   Begin VB.TextBox txtPassWord 
      Height          =   270
      Left            =   2400
      TabIndex        =   1
      Top             =   2880
      Width           =   2175
   End
   Begin VB.TextBox txtUserName 
      Height          =   270
      Left            =   2400
      TabIndex        =   0
      Top             =   2160
      Width           =   2175
   End
   Begin VB.Label Label3 
      BackStyle       =   0  'Transparent
      Caption         =   "图 书 管 理 系 统"
      BeginProperty Font 
         Name            =   "楷体_GB2312"
         Size            =   24
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00C00000&
      Height          =   615
      Left            =   1320
      TabIndex        =   6
      Top             =   840
      Width           =   4335
   End
   Begin VB.Label Label1 
      BackColor       =   &H00FFFFFF&
      BackStyle       =   0  'Transparent
      Caption         =   "用户名："
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FF00FF&
      Height          =   375
      Left            =   1440
      TabIndex        =   5
      Top             =   2160
      Width           =   975
   End
   Begin VB.Label Label2 
      BackStyle       =   0  'Transparent
      Caption         =   "密  码："
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00C000C0&
      Height          =   375
      Left            =   1440
      TabIndex        =   4
      Top             =   2880
      Width           =   975
   End
   Begin VB.Image Image2 
      Height          =   7350
      Left            =   0
      Picture         =   "xsbook.frx":0000
      Top             =   0
      Width           =   10995
   End
   Begin VB.Image Image1 
      Height          =   4980
      Left            =   -120
      Top             =   -120
      Width           =   6750
   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 GetUserName Lib "advapi32.dll" Alias "GetUserNameA" (ByVal lpbuffer As String, nsize As Long) As Long

Private Sub cmdCancel_Click()
        Unload Me
End Sub

Private Sub cmdOk_Click()
        If txtPassWord.Text = "" Then
           flag = 1
           
           Unload Me
          
        Else
           MsgBox "invalid PassWord,try again!", , "login"
           txtPassWord.SetFocus
           txtPassWord.SelStart = 0
           txtPassWord.SelLength = Len(txtPassWord.Text)
        End If
End Sub

Private Sub Form_Load()
            Dim sBuffer As String
            Dim lsize As Long
            sBuffer = Space$(255)
            lsize = Len(sBuffer)
            Call GetUserName(sBuffer, lsize)
            If lsize > 0 Then
               txtUserName.Text = Left$(sBuffer, lsize)
            Else
               txtUserName.Text = vbNullString
            End If
End Sub