Telnet客户端

开发平台：
Visual Basic

Form1.frm：源码内容
							VERSION 5.00
Object = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}#1.0#0"; "MSWINSCK.OCX"
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   5610
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   5130
   LinkTopic       =   "Form1"
   ScaleHeight     =   5610
   ScaleWidth      =   5130
   StartUpPosition =   3  '窗口缺省
   Begin MSWinsockLib.Winsock Winsock1 
      Left            =   2160
      Top             =   5280
      _ExtentX        =   741
      _ExtentY        =   741
      _Version        =   393216
   End
   Begin VB.Frame Frame1 
      Height          =   1215
      Left            =   120
      TabIndex        =   2
      Top             =   120
      Width           =   4935
      Begin VB.CommandButton Command1 
         Caption         =   "连接"
         Height          =   855
         Left            =   3360
         TabIndex        =   7
         Top             =   240
         Width           =   1095
      End
      Begin VB.TextBox Text4 
         Height          =   375
         Left            =   1080
         TabIndex        =   4
         Text            =   "Text4"
         Top             =   720
         Width           =   1935
      End
      Begin VB.TextBox Text3 
         Height          =   375
         Left            =   1080
         TabIndex        =   3
         Text            =   "Text3"
         Top             =   240
         Width           =   1935
      End
      Begin VB.Label Label2 
         AutoSize        =   -1  'True
         Caption         =   "端口："
         Height          =   180
         Left            =   360
         TabIndex        =   6
         Top             =   720
         Width           =   540
      End
      Begin VB.Label Label1 
         AutoSize        =   -1  'True
         Caption         =   "服务器："
         Height          =   180
         Left            =   240
         TabIndex        =   5
         Top             =   360
         Width           =   720
      End
   End
   Begin VB.TextBox Text2 
      Height          =   375
      Left            =   0
      TabIndex        =   1
      Top             =   4800
      Width           =   5055
   End
   Begin VB.TextBox Text1 
      BackColor       =   &H80000007&
      ForeColor       =   &H80000005&
      Height          =   3255
      Left            =   120
      MultiLine       =   -1  'True
      ScrollBars      =   2  'Vertical
      TabIndex        =   0
      Top             =   1440
      Width           =   4935
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Command1_Click()
On Error GoTo 1
Form1.Winsock1.Close
Form1.Winsock1.Connect Text3.Text, Text4.Text
SaveSetting "Telnetclient", "Last", "Server", Text1.Text
SaveSetting "Telnetclient", "Last", "Port", Text2.Text
Exit Sub
1 MsgBox Err.Description, vbCritical
Form1.Winsock1.Close
End Sub
Private Sub Form_Load()
a = GetSetting("Telnetclient", "Last", "Server", "")
If a = "" Then
Else
End If
Text3.Text = GetSetting("Telnetclient", "Last", "Server", "")
Text4.Text = GetSetting("Telnetclient", "Last", "Port", 23)
End Sub
Private Sub Text1_Change()
Text1.SelStart = Len(Text1.Text)
Text2.SetFocus
End Sub
Private Sub Text2_KeyDown(KeyCode As Integer, Shift As Integer)
KeyCode = 0
End Sub
Private Sub Text2_KeyPress(KeyAscii As Integer)
On Error GoTo 1
If KeyAscii = 13 Then
Text2.Text = ""
Winsock1.SendData Chr(13)
KeyAscii = 0
Else
Winsock1.SendData Chr(KeyAscii)
End If
Exit Sub
1 KeyAscii = 0
End Sub
Private Sub Winsock1_Close()
MsgBox "断开连接！"
Winsock1.Close
End Sub
Private Sub Winsock1_DataArrival(ByVal bytesTotal As Long)
Winsock1.GetData buffer$, vbString
Text1.Text = Text1.Text & buffer$
End Sub

						