中间件编程

开发平台：
Visual C++

frmWanderer.frm：源码内容
							VERSION 5.00
Object = "{48E59290-9880-11CF-9754-00AA00C00908}#1.0#0"; "MSINET.OCX"
Object = "{3B7C8863-D78F-101B-B9B5-04021C009402}#1.2#0"; "RICHTX32.OCX"
Begin VB.Form frmWanderer 
   Caption         =   "搜 索"
   ClientHeight    =   6090
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   8235
   LinkTopic       =   "Form1"
   ScaleHeight     =   6090
   ScaleWidth      =   8235
   StartUpPosition =   2  'CenterScreen
   Begin RichTextLib.RichTextBox RichTextSearch 
      Height          =   2775
      Left            =   120
      TabIndex        =   8
      Top             =   3000
      Width           =   7935
      _ExtentX        =   13996
      _ExtentY        =   4895
      _Version        =   393217
      TextRTF         =   $"frmWanderer.frx":0000
   End
   Begin VB.TextBox Text1 
      Height          =   495
      Left            =   1440
      TabIndex        =   6
      Top             =   120
      Width           =   2775
   End
   Begin RichTextLib.RichTextBox rtbLinkNames 
      Height          =   1215
      Left            =   120
      TabIndex        =   5
      Top             =   1320
      Width           =   8175
      _ExtentX        =   14420
      _ExtentY        =   2143
      _Version        =   393217
      TextRTF         =   $"frmWanderer.frx":028A
   End
   Begin VB.CommandButton cmdStopWandering 
      Caption         =   "停止"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   4320
      TabIndex        =   4
      Top             =   720
      Width           =   1335
   End
   Begin VB.CommandButton cmdExit 
      Caption         =   "退出"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   6120
      TabIndex        =   3
      Top             =   720
      Width           =   1215
   End
   Begin VB.CommandButton cmdGoWander 
      Caption         =   "搜索"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   4320
      TabIndex        =   2
      Top             =   120
      Width           =   1335
   End
   Begin VB.TextBox txtSite 
      Height          =   495
      Left            =   1440
      TabIndex        =   1
      Top             =   720
      Width           =   2775
   End
   Begin InetCtlsObjects.Inet itcWander 
      Left            =   120
      Top             =   1320
      _ExtentX        =   1005
      _ExtentY        =   1005
      _Version        =   393216
   End
   Begin VB.Label Label3 
      Caption         =   "包含有关键字的网页："
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Left            =   240
      TabIndex        =   9
      Top             =   2640
      Width           =   3255
   End
   Begin VB.Label Label2 
      Caption         =   "关键字："
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   360
      TabIndex        =   7
      Top             =   240
      Width           =   975
   End
   Begin VB.Label Label1 
      Caption         =   "开始 URL"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Left            =   240
      TabIndex        =   0
      Top             =   840
      Width           =   1095
   End
End
Attribute VB_Name = "frmWanderer"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub cmdExit_Click()
Unload Me
End Sub
Private Sub cmdGoWander_Click()
stopSearching = False
rtbLinkNames.Text = ""
Current_pos = 1
Me.MousePointer = vbArrowHourglass
cmdGoWander.Enabled = True
cmdStopWandering.Enabled = True
If Get_File(txtSite.Text) Then
 If Not parse Then
 Me.MousePointer = vbNormal
 cmdGoWander.Enabled = True
 cmdStopWandering.Enabled = False
 Exit Sub
 End If
 
Else
 Me.MousePointer = vbNormal
 MsgBox "unable to find the desired site."
End If
cmdGoWander.Enabled = True
cmdStopWandering.Enabled = False
Me.MousePointer = vbNormal
stopSearching = True
End Sub
Private Sub cmdStopWandering_Click()
stopSearching = True
End Sub
Private Sub Form_Load()
txtSite.Text = "http://www.21cn.com"
NewLine = Chr(13) & Chr(10)
stopSearching = True
cmdStopWandering.Enabled = False
End Sub
Private Sub Form_QueryUnload(Cancel As Integer, UnloadMode As Integer)
Dim ResPonse As Integer
 If Not stopSearching Then
   ResPonse = MsgBox("stop search and lose updated file?", vbYesNo)
   If ResPonse = vbNo Then
   Cancel = 1
   Exit Sub
   End If
Else
respose = MsgBox("close program?", vbYesNo)
If ResPonse = vbNo Then
 Cancel = 1
 Exit Sub
 End If
End If
itcWander.Cancel
End Sub
Private Sub Form_Unload(Cancel As Integer)
Unload frmSearching
Unload frmparsing
End Sub
Private Sub itcWander_StateChanged(ByVal State As Integer)
    Dim strmess As String
     DoEvents
     Select Case State
      Case ichostresolvinghost
        connected = False
      Case icConnected
      connected = True
      Case State = icError
      strmess = "errorcode:" & itcWander.ResponseCode & ":" & itcsearch.ResponseInfo
      MsgBox strmess, vbOKOnly
      itcwandersearcherror = True
    End Select
    
      
End Sub

						