局域网聊天服务端_tcp.frm

个人VB学习源码精选,自己学习时的一些编程小程序,希望对大家有帮助

VERSION 5.00
Object = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}#1.0#0"; "MSWINSCK.OCX"
Begin VB.Form Form1 
   Caption         =   "局域网聊天服务端"
   ClientHeight    =   570
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   2760
   LinkTopic       =   "Form1"
   ScaleHeight     =   570
   ScaleWidth      =   2760
   StartUpPosition =   3  '窗口缺省
   Begin MSWinsockLib.Winsock SockServer2 
      Left            =   0
      Top             =   60
      _ExtentX        =   741
      _ExtentY        =   741
      _Version        =   393216
   End
   Begin MSWinsockLib.Winsock SockServer1 
      Left            =   420
      Top             =   60
      _ExtentX        =   741
      _ExtentY        =   741
      _Version        =   393216
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False

Dim Server1Connected As Boolean
Dim Server2Connected As Boolean
Private Sub Form_Load()
    SockServer1.LocalPort = 3000
    SockServer2.LocalPort = 4000
    SockServer1.Listen
    SockServer2.Listen
End Sub



Private Sub SockServer1_Close()
    SockServer1.Close
    SockServer1.Listen
    Server1Connected = False
    If Server2Connected Then
        SockServer2.SendData "对方已断开连接，请等待对方重新连接"
    End If
End Sub

Private Sub SockServer1_ConnectionRequest(ByVal requestID As Long)
    SockServer1.Close
    SockServer1.Accept (requestID)
    Server1Connected = True
    If Not Server2Connected Then
        SockServer1.SendData "对方还没有连接，请等待对方的连接"
    Else
        SockServer1.SendData "对方已经连接，你们可以通话了！"
    End If
End Sub

Private Sub SockServer1_DataArrival(ByVal bytesTotal As Long)
    Dim Server1AcceptString As String
    SockServer1.GetData Server1AcceptString
    If Not Server2Connected Then
        SockServer1.SendData "错误：不能发送数据（对方还没有连接，请等待对方的连接！）"
    Else
        SockServer2.SendData Server1AcceptString
    End If
End Sub




Private Sub SockServer2_Close()
    SockServer2.Close
    SockServer2.Listen
    Server2Connected = False
    If Server1Connected Then
        SockServer1.SendData "对方已断开连接，请等待对方重新连接"
    End If
End Sub

Private Sub SockServer2_ConnectionRequest(ByVal requestID As Long)
    SockServer2.Close
    SockServer2.Accept (requestID)
    Server2Connected = True
    If Not Server1Connected Then
        SockServer2.SendData "对方还没有连接，请等待对方的连接"
    Else
        SockServer2.SendData "对方已经连接，你们可以通话了！"
    End If
End Sub

Private Sub SockServer2_DataArrival(ByVal bytesTotal As Long)
    Dim Server2AcceptString As String
    SockServer2.GetData Server2AcceptString
    If Not Server1Connected Then
        SockServer2.SendData "错误：不能发送数据（对方还没有连接，请等待对方的连接！）"
    Else
        SockServer1.SendData Server2AcceptString
    End If
End Sub