frmclient.frm

用VB控件WINSOCK的TCP协议制作的局域网聊天工具,做得不好

VERSION 5.00
Object = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}#1.0#0"; "MSWINSCK.OCX"
Object = "{3B7C8863-D78F-101B-B9B5-04021C009402}#1.2#0"; "RICHTX32.OCX"
Begin VB.Form frmClient 
   Caption         =   "tcpClient"
   ClientHeight    =   4905
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   5775
   LinkTopic       =   "Form1"
   ScaleHeight     =   4905
   ScaleWidth      =   5775
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton cmdClear 
      Caption         =   "清除"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   2040
      TabIndex        =   10
      Top             =   4200
      Width           =   1575
   End
   Begin VB.TextBox txtOutput 
      Height          =   2055
      Left            =   3360
      MultiLine       =   -1  'True
      ScrollBars      =   2  'Vertical
      TabIndex        =   9
      Top             =   2040
      Width           =   2115
   End
   Begin VB.CommandButton Command1 
      Caption         =   "disconnect"
      Enabled         =   0   'False
      Height          =   615
      Left            =   4440
      TabIndex        =   8
      Top             =   840
      Width           =   1095
   End
   Begin MSWinsockLib.Winsock tcpClient 
      Left            =   1680
      Top             =   2640
      _ExtentX        =   741
      _ExtentY        =   741
      _Version        =   393216
   End
   Begin VB.CommandButton cmdConnect 
      Caption         =   "Connect"
      Height          =   615
      Left            =   4440
      TabIndex        =   7
      Top             =   120
      Width           =   1095
   End
   Begin RichTextLib.RichTextBox txtSend 
      Height          =   2055
      Left            =   240
      TabIndex        =   6
      Top             =   2040
      Width           =   2055
      _ExtentX        =   3625
      _ExtentY        =   3625
      _Version        =   393217
      TextRTF         =   $"frmClient.frx":0000
   End
   Begin VB.TextBox txtRemotePort 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   2040
      TabIndex        =   4
      Top             =   960
      Width           =   1935
   End
   Begin VB.TextBox txtRemoteIP 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   2040
      TabIndex        =   3
      Top             =   120
      Width           =   1935
   End
   Begin VB.Label lblOutput 
      Caption         =   "接收数据"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Left            =   3360
      TabIndex        =   5
      Top             =   1680
      Width           =   975
   End
   Begin VB.Label lblSend 
      Caption         =   "发送数据"
      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        =   2
      Top             =   1680
      Width           =   975
   End
   Begin VB.Label Label2 
      Caption         =   "服务器端口"
      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        =   1
      Top             =   960
      Width           =   1215
   End
   Begin VB.Label lblRemoteIP 
      Caption         =   "服务器IP"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Left            =   360
      TabIndex        =   0
      Top             =   240
      Width           =   1215
   End
End
Attribute VB_Name = "frmClient"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub cmdClear_Click()
'清除接收窗口的内容
  txtSend.Text = ""
  txtOutput.Text = ""
End Sub

Private Sub cmdConnect_Click()
 If txtRemoteIP <> tcpClient.LocalIP Then  '如果分开运行，把“.LocalIP”改为：".RemoteHostIP"
  MsgBox "请输入正确的IP地址或端口号", vbInformation, "错误框"
     txtRemoteIP.Text = ""
     txtRemotePort.Text = ""
 Else
  tcpClient.RemoteHost = txtRemoteIP
  tcpClient.RemotePort = txtRemotePort
  tcpClient.Connect
  cmdConnect.Enabled = False
  Command1.Enabled = True
  
End If
  
 

End Sub



Private Sub Command1_Click()
'用来关闭winsock，断开与服务器之间的联系
     tcpClient.Close
     cmdConnect.Enabled = True
     Command1.Enabled = False
End Sub



Private Sub tcpClient_DataArrival(ByVal bytesTotal As Long)
'接收从服务器发送回来的数据，并显示在接收窗口
  Dim strData As String
  tcpClient.GetData strData
  txtOutput.Text = strData
End Sub

Private Sub txtSend_Change()
 '当发送窗口的数据发生改变时，将改变的数据发送给服务器
 tcpClient.SendData txtSend.Text
End Sub