winsockserver.frm

VB6程序设计参考手册的独立源码

VERSION 5.00
Object = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}#1.0#0"; "MSWINSCK.OCX"
Begin VB.Form ServerFrm 
   AutoRedraw      =   -1  'True
   Caption         =   "Server"
   ClientHeight    =   3780
   ClientLeft      =   3795
   ClientTop       =   1905
   ClientWidth     =   4080
   LinkTopic       =   "Form1"
   ScaleHeight     =   3780
   ScaleWidth      =   4080
   Tag             =   "hello"
   Begin VB.TextBox Text2 
      Height          =   855
      Left            =   120
      MultiLine       =   -1  'True
      TabIndex        =   3
      Top             =   2520
      Width           =   3855
   End
   Begin VB.CommandButton Command2 
      Caption         =   "退出"
      Height          =   255
      Left            =   2520
      TabIndex        =   2
      Top             =   3480
      Width           =   1215
   End
   Begin VB.CommandButton Command1 
      Caption         =   "发送"
      Height          =   255
      Left            =   360
      TabIndex        =   1
      Top             =   3480
      Width           =   1215
   End
   Begin VB.TextBox Text1 
      Height          =   2295
      Left            =   120
      Locked          =   -1  'True
      MultiLine       =   -1  'True
      ScrollBars      =   2  'Vertical
      TabIndex        =   0
      Top             =   0
      Width           =   3855
   End
   Begin MSWinsockLib.Winsock sockserver 
      Left            =   1800
      Top             =   3360
      _ExtentX        =   741
      _ExtentY        =   741
      _Version        =   393216
   End
End
Attribute VB_Name = "ServerFrm"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim SendMsg As String

Private Sub Form_Load()
    sockserver.LocalPort = 2000 '服务器端口号,最好大于1000
    sockserver.Listen  '开始侦听
    Text1.Locked = True
End Sub

'  建立新连接
Private Sub SockServer_ConnectionRequest(ByVal requestID As Long)
    If sockserver.State <> sckClosed Then sockserver.Close
    sockserver.Accept requestID '表示客户请求连接的ID号
    SendMsg = " You have connected to server!"
    sockserver.SendData SendMsg
End Sub

'  当客户向服务器发送数据到达后 , 产生DataArrival事件, 在事件中接收数据, GetData方法接收数据?
Private Sub SockServer_DataArrival(ByVal bytesTotal As Long)
    Dim s As String
    sockserver.GetData s
    If Text1.Text = "" Then
        Text1.Text = "From Client:" & s
    Else
        Text1.Text = Text1.Text & vbCrLf & "From Client:" & s
    End If
End Sub
'  当需要向客户发送数据时，只需调用SendData方法。
Private Sub Command1_Click()
    SendMsg = Text2.Text
    sockserver.SendData SendMsg
End Sub

'  发送完毕后回显
Private Sub sockserver_SendComplete()
    If Text1.Text = "" Then
        Text1.Text = "To Client:" & SendMsg
    Else
        Text1.Text = Text1.Text & vbCrLf & "To Client:" & SendMsg
    End If
End Sub

Private Sub Command2_Click()
    sockserver.Close
    End
End Sub

Private Sub Form_Unload(Cancel As Integer)
    sockserver.Close
End Sub