The UDPChat Source(VB.NET)

The UDPChat-Server Source(VB.NET)

'I use Winsock Control SP5(VB6)

Public Class frmMain

Inherits System.Windows.Forms.Form

#Region " Windows 窗体设计器生成的代码 "

Public Sub New()

MyBase.New()

'该调用是 Windows 窗体设计器所必需的。

InitializeComponent()

'在 InitializeComponent() 调用之后添加任何初始化

End Sub

'窗体重写处置以清理组件列表。

Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)

If disposing Then

If Not (components Is Nothing) Then

components.Dispose()

End If

MyBase.Dispose(disposing)

End Sub

'Windows 窗体设计器所必需的

Private components As System.ComponentModel.IContainer

'注意：以下过程是 Windows 窗体设计器所必需的

'可以使用 Windows 窗体设计器修改此过程。

'不要使用代码编辑器修改它。

Friend WithEvents txtChatLog As System.Windows.Forms.TextBox

Friend WithEvents pelSaid As System.Windows.Forms.Panel

Friend WithEvents txtSaid As System.Windows.Forms.TextBox

Friend WithEvents btnSend As System.Windows.Forms.Button

Friend WithEvents sckServer As AxMSWinsockLib.AxWinsock

<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(frmMain))

Me.txtChatLog = New System.Windows.Forms.TextBox()

Me.pelSaid = New System.Windows.Forms.Panel()

Me.btnSend = New System.Windows.Forms.Button()

Me.txtSaid = New System.Windows.Forms.TextBox()

Me.sckServer = New AxMSWinsockLib.AxWinsock()

Me.pelSaid.SuspendLayout()

CType(Me.sckServer, System.ComponentModel.ISupportInitialize).BeginInit()

Me.SuspendLayout()

'txtChatLog

Me.txtChatLog.Dock = System.Windows.Forms.DockStyle.Top

Me.txtChatLog.Multiline = True

Me.txtChatLog.Name = "txtChatLog"

Me.txtChatLog.ReadOnly = True

Me.txtChatLog.ScrollBars = System.Windows.Forms.ScrollBars.Vertical

Me.txtChatLog.Size = New System.Drawing.Size(392, 328)

Me.txtChatLog.TabIndex = 0

Me.txtChatLog.TabStop = False

Me.txtChatLog.Text = ""

'pelSaid

Me.pelSaid.Controls.AddRange(New System.Windows.Forms.Control() {Me.btnSend, Me.txtSaid})

Me.pelSaid.Dock = System.Windows.Forms.DockStyle.Bottom

Me.pelSaid.Location = New System.Drawing.Point(0, 332)

Me.pelSaid.Name = "pelSaid"

Me.pelSaid.Size = New System.Drawing.Size(392, 34)

Me.pelSaid.TabIndex = 1

'btnSend

Me.btnSend.Location = New System.Drawing.Point(296, 5)

Me.btnSend.Name = "btnSend"

Me.btnSend.Size = New System.Drawing.Size(80, 24)

Me.btnSend.TabIndex = 0

Me.btnSend.Text = "Send"

'txtSaid

Me.txtSaid.Location = New System.Drawing.Point(8, 6)

Me.txtSaid.Name = "txtSaid"

Me.txtSaid.Size = New System.Drawing.Size(280, 21)

Me.txtSaid.TabIndex = 0

Me.txtSaid.Text = ""

'sckServer

Me.sckServer.Enabled = True

Me.sckServer.Location = New System.Drawing.Point(16, 8)

Me.sckServer.Name = "sckServer"

Me.sckServer.OcxState = CType(resources.GetObject("sckServer.OcxState"), System.Windows.Forms.AxHost.State)

Me.sckServer.Size = New System.Drawing.Size(28, 28)

Me.sckServer.TabIndex = 2

'frmMain

Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)

Me.ClientSize = New System.Drawing.Size(392, 366)

Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.sckServer, Me.pelSaid, Me.txtChatLog})

Me.MaximizeBox = False

Me.MaximumSize = New System.Drawing.Size(400, 400)

Me.MinimumSize = New System.Drawing.Size(400, 400)

Me.Name = "frmMain"

Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen

Me.Text = "UDPChat-Server"

Me.pelSaid.ResumeLayout(False)

CType(Me.sckServer, System.ComponentModel.ISupportInitialize).EndInit()

Me.ResumeLayout(False)

End Sub

#End Region

#Region "Winsock Event"

Private Sub sckServer_ConnectionRequest(ByVal sender As Object, ByVal e As AxMSWinsockLib.DMSWinsockControlEvents_ConnectionRequestEvent) Handles sckServer.ConnectionRequest

txtChatLog.AppendText("Request of Connecting from " & e.requestID & vbCrLf)

txtChatLog.AppendText("Request Accepted...." & vbCrLf)

sckServer.Accept(e.requestID)

sckServer.SendData("Connection Accepted...." & vbCrLf)

End Sub

Private Sub sckServer_DataArrival(ByVal sender As Object, ByVal e As AxMSWinsockLib.DMSWinsockControlEvents_DataArrivalEvent) Handles sckServer.DataArrival

Dim objData As Object

sckServer.GetData(objData, vbString)

txtChatLog.AppendText("Client: " & CStr(objData) & vbCrLf)

End Sub

#End Region

Private Sub frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

sckServer.RemoteHost = "127.0.0.1"

sckServer.RemotePort = 8000

sckServer.Bind(1000)

txtChatLog.AppendText("Binded to localhost at 1000 and Remote port 8000" & vbCrLf)

End Sub

Private Sub btnSend_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSend.Click

If txtSaid.Text.Trim = "" Then

MsgBox("Please input the chat the contents", MsgBoxStyle.OKOnly, "UDPChat-Server")

Exit Sub

End If

Try

txtChatLog.AppendText("Server: " & txtSaid.Text & vbCrLf)

sckServer.SendData(CType(txtSaid.Text, Object))

txtSaid.Text = ""

Catch

MsgBox("Error Occured " & Err.Description & vbCrLf & Err.Number, MsgBoxStyle.OKOnly, "UDPChat-Server")

End Try

End Sub

Private Sub txtSaid_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtSaid.KeyPress

If (e.KeyChar = Chr(13)) Then

btnSend_Click(sender, New System.EventArgs())

End If

End Sub

End Class

The UDPChat-Client Source(VB.NET)

'I use Winsock Control SP5(VB6)

Public Class frmMain

Inherits System.Windows.Forms.Form

#Region " Windows 窗体设计器生成的代码 "

Public Sub New()

MyBase.New()

'该调用是 Windows 窗体设计器所必需的。

InitializeComponent()

'在 InitializeComponent() 调用之后添加任何初始化

End Sub

'窗体重写处置以清理组件列表。

Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)

If disposing Then

If Not (components Is Nothing) Then

components.Dispose()

End If

MyBase.Dispose(disposing)

End Sub

'Windows 窗体设计器所必需的

Private components As System.ComponentModel.IContainer

'注意：以下过程是 Windows 窗体设计器所必需的

'可以使用 Windows 窗体设计器修改此过程。

'不要使用代码编辑器修改它。

Friend WithEvents pelSaid As System.Windows.Forms.Panel

Friend WithEvents btnSend As System.Windows.Forms.Button

Friend WithEvents txtSaid As System.Windows.Forms.TextBox

Friend WithEvents txtChatLog As System.Windows.Forms.TextBox

Friend WithEvents sckClient As AxMSWinsockLib.AxWinsock

<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(frmMain))

Me.pelSaid = New System.Windows.Forms.Panel()

Me.btnSend = New System.Windows.Forms.Button()

Me.txtSaid = New System.Windows.Forms.TextBox()

Me.txtChatLog = New System.Windows.Forms.TextBox()

Me.sckClient = New AxMSWinsockLib.AxWinsock()

Me.pelSaid.SuspendLayout()

CType(Me.sckClient, System.ComponentModel.ISupportInitialize).BeginInit()

Me.SuspendLayout()

'pelSaid

Me.pelSaid.Controls.AddRange(New System.Windows.Forms.Control() {Me.btnSend, Me.txtSaid})

Me.pelSaid.Dock = System.Windows.Forms.DockStyle.Bottom

Me.pelSaid.Location = New System.Drawing.Point(0, 332)

Me.pelSaid.Name = "pelSaid"

Me.pelSaid.Size = New System.Drawing.Size(392, 34)

Me.pelSaid.TabIndex = 2

'btnSend

Me.btnSend.Location = New System.Drawing.Point(296, 5)

Me.btnSend.Name = "btnSend"

Me.btnSend.Size = New System.Drawing.Size(80, 24)

Me.btnSend.TabIndex = 0

Me.btnSend.Text = "Send"

'txtSaid

Me.txtSaid.Location = New System.Drawing.Point(8, 6)

Me.txtSaid.Name = "txtSaid"

Me.txtSaid.Size = New System.Drawing.Size(280, 21)

Me.txtSaid.TabIndex = 0

Me.txtSaid.Text = ""

'txtChatLog

Me.txtChatLog.Dock = System.Windows.Forms.DockStyle.Top

Me.txtChatLog.Multiline = True

Me.txtChatLog.Name = "txtChatLog"

Me.txtChatLog.ReadOnly = True

Me.txtChatLog.ScrollBars = System.Windows.Forms.ScrollBars.Vertical

Me.txtChatLog.Size = New System.Drawing.Size(392, 328)

Me.txtChatLog.TabIndex = 3

Me.txtChatLog.TabStop = False

Me.txtChatLog.Text = ""

'sckClient

Me.sckClient.Enabled = True

Me.sckClient.Location = New System.Drawing.Point(16, 8)

Me.sckClient.Name = "sckClient"

Me.sckClient.OcxState = CType(resources.GetObject("sckClient.OcxState"), System.Windows.Forms.AxHost.State)

Me.sckClient.Size = New System.Drawing.Size(28, 28)

Me.sckClient.TabIndex = 4

'frmMain

Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)

Me.ClientSize = New System.Drawing.Size(392, 366)

Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.sckClient, Me.txtChatLog, Me.pelSaid})

Me.MaximizeBox = False

Me.MaximumSize = New System.Drawing.Size(400, 400)

Me.MinimumSize = New System.Drawing.Size(400, 400)

Me.Name = "frmMain"

Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen

Me.Text = "UDPChat-Client"

Me.pelSaid.ResumeLayout(False)

CType(Me.sckClient, System.ComponentModel.ISupportInitialize).EndInit()

Me.ResumeLayout(False)

End Sub

#End Region

#Region "Winsock Event"

Private Sub sckClient_ConnectEvent(ByVal sender As Object, ByVal e As System.EventArgs) Handles sckClient.ConnectEvent

txtChatLog.AppendText("Connected to " & sckClient.RemoteHost & vbCrLf)

txtChatLog.AppendText("Socket State is " & sckClient.SocketHandle & vbCrLf)

End Sub

Private Sub sckClient_DataArrival(ByVal sender As Object, ByVal e As AxMSWinsockLib.DMSWinsockControlEvents_DataArrivalEvent) Handles sckClient.DataArrival

Dim objData As Object

sckClient.GetData(objData, vbString)

txtChatLog.AppendText("Server: " & CStr(objData) & vbCrLf)

End Sub

#End Region

Private Sub frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

sckClient.RemoteHost = "127.0.0.1"

sckClient.RemotePort = 1000

sckClient.Bind(8000)

txtChatLog.AppendText("Bind to local Port 8000 and remote port 1000" & vbCrLf)

End Sub

Private Sub btnSend_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSend.Click

If txtSaid.Text.Trim = "" Then

MsgBox("Please input the chat the contents", MsgBoxStyle.OKOnly, "UDPChat-Client")

Exit Sub

End If

Try

txtChatLog.AppendText("Client: " & txtSaid.Text & vbCrLf)

sckClient.SendData(CType(txtSaid.Text, Object))

txtSaid.Text = ""

Catch

MsgBox("Error Occured " & Err.Description & vbCrLf & Err.Number, MsgBoxStyle.OKOnly, "UDPChat-Client")

End Try

End Sub

Private Sub txtSaid_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtSaid.KeyPress

If (e.KeyChar = Chr(13)) Then

btnSend_Click(sender, New System.EventArgs())

End If

End Sub

End Class