frmwinsock.frm

vb利用winsock控件进行通讯的服务器程序

VERSION 5.00
Object = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}#1.0#0"; "MSWINSCK.OCX"
Begin VB.Form frmWinSock 
   Caption         =   "WinSock测试"
   ClientHeight    =   3930
   ClientLeft      =   45
   ClientTop       =   435
   ClientWidth     =   6405
   LinkTopic       =   "Form1"
   ScaleHeight     =   3930
   ScaleWidth      =   6405
   StartUpPosition =   3  '窗口缺省
   Begin VB.TextBox Text1 
      Height          =   732
      Left            =   480
      TabIndex        =   0
      Top             =   1560
      Width           =   3612
   End
   Begin MSWinsockLib.Winsock WinsockServer 
      Index           =   0
      Left            =   720
      Top             =   480
      _ExtentX        =   741
      _ExtentY        =   741
      _Version        =   393216
   End
End
Attribute VB_Name = "frmWinSock"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private intMax As Integer
Private Sub Form_Load()
    intMax = 0
    Me.WinsockServer(0).LocalPort = "2000"  '设置服务器侦听端口
   ' Me.WinsockServer(0).LocalIP = "192.168.1.6"
   ' Me.WinsockServer.Bind Me.WinsockServer.LocalPort, Me.WinsockServer.LocalIP
    Me.WinsockServer(0).Listen
End Sub

Private Sub WinsockServer_ConnectionRequest(Index As Integer, ByVal requestID As Long)
    Dim sip As String
    sip = Me.WinsockServer(0).RemoteHostIP
    intMax = 1
    Dim d As Integer
    d = Me.WinsockServer.UBound
    Do While intMax <= Me.WinsockServer.UBound
        If Me.WinsockServer(intMax).RemoteHostIP = sip Then
            If Me.WinsockServer(intMax).State <> sckClose Then
                 Me.WinsockServer(intMax).Close
                 Me.WinsockServer(intMax).Accept requestID
            End If
           Exit Sub
        End If
        intMax = intMax + 1
    Loop
    Load Me.WinsockServer(intMax)
    Me.WinsockServer(intMax).Accept requestID
    
End Sub
Private Sub WinSockServer_DataArrival(Index As Integer, ByVal bytesTotal As Long)
    Dim sdata As String
    Me.WinsockServer(intMax).GetData sdata, vbString
    Me.Text1.Text = sdata
End Sub