VB6.0 通过WinSock控件实现TCP/IP通讯
项目上有可能用到电脑间的数据传输，找了下网络资料，自己做了个程序测试一下。
可以选择作为服务器或者客户端。
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VERSION 5.00 Object = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}#1.0#0"; "mswinsck.ocx" Begin VB.Form Form1 Caption = "Form1" ClientHeight = 6405 ClientLeft = 120 ClientTop = 450 ClientWidth = 11355 LinkTopic = "Form1" ScaleHeight = 6405 ScaleWidth = 11355 StartUpPosition = 3 '窗口缺省 Begin VB.TextBox Text2 Height = 375 Left = 6480 TabIndex = 7 Text = "7988" Top = 4320 Width = 3495 End Begin VB.TextBox Text1 Enabled = 0 'False Height = 375 Left = 6480 TabIndex = 6 Text = "192.168.31.24" Top = 3840 Width = 3495 End Begin VB.TextBox txtoutput Height = 375 Left = 2880 TabIndex = 5 Text = "Text1" Top = 1560 Width = 4935 End Begin VB.TextBox txtsenddata Height = 375 Left = 2880 TabIndex = 4 Text = "Text1" Top = 960 Width = 4935 End Begin VB.Timer Timer1 Interval = 500 Left = 3120 Top = 5160 End Begin VB.CommandButton Command1 Caption = "Command1" Height = 615 Left = 8520 TabIndex = 2 Top = 2400 Width = 1695 End Begin MSWinsockLib.Winsock Tcpserver Left = 6720 Top = 5160 _ExtentX = 741 _ExtentY = 741 _Version = 393216 End Begin VB.OptionButton Option2 Caption = "客户端" Height = 255 Left = 8640 TabIndex = 1 Top = 960 Width = 1695 End Begin VB.OptionButton Option1 Caption = "服务器" Height = 255 Left = 8640 TabIndex = 0 Top = 600 Value = -1 'True Width = 1695 End Begin VB.Label Label1 Caption = "Label1" Height = 495 Left = 720 TabIndex = 3 Top = 3000 Width = 2535 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() If Option1.Value Then Tcpserver.Close Tcpserver.LocalPort = CInt(Val(Text2.Text)) '设置侦听端口 Tcpserver.Listen '侦听 ElseIf Option2.Value Then Tcpserver.Close Tcpserver.RemoteHost = Trim(Text1.Text) '设置服务器IP Tcpserver.RemotePort = CInt(Val(Text2.Text)) '设置服务器端口 Tcpserver.Connect '连接 End If End Sub Private Sub Form_Load() Tcpserver.Close End Sub Private Sub Option1_Click() Text1.Enabled = Option2.Value End Sub Private Sub Option2_Click() Text1.Enabled = Option2.Value End Sub Private Sub Tcpserver_ConnectionRequest(ByVal requestID As Long) If Tcpserver.State <> sckClosed Then Tcpserver.Close Tcpserver.Accept requestID End Sub Private Sub txtsenddata_change() Tcpserver.SendData txtsenddata.Text End Sub Private Sub tcpserver_DataArrival(ByVal bytesTotal As Long) Dim strData As String Tcpserver.GetData strData txtoutput.Text = strData End Sub Private Sub Timer1_Timer() Select Case Tcpserver.State Case 0: Label1.Caption = "缺省的，关闭" Case 1: Label1.Caption = "打开" Case 2: Label1.Caption = "侦听" Case 3: Label1.Caption = "连接挂起" Case 4: Label1.Caption = "识别主机" Case 5: Label1.Caption = "已识别主机" Case 6: Label1.Caption = "正在连接" Case 7: Label1.Caption = "已经连接" Case 8 Label1.Caption = "同级人员正在关闭连接" Tcpserver.Close Command1_Click Case 9: Label1.Caption = "错误" End Select End Sub |
