frmclient.frm

用VB 实现的一个聊天室

VERSION 5.00
Object = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}#1.0#0"; "MSWINSCK.OCX"
Object = "{831FDD16-0C5C-11D2-A9FC-0000F8754DA1}#2.0#0"; "mscomctl.ocx"
Object = "{3B7C8863-D78F-101B-B9B5-04021C009402}#1.2#0"; "richtx32.ocx"
Object = "{F9043C88-F6F2-101A-A3C9-08002B2F49FB}#1.2#0"; "Comdlg32.ocx"
Begin VB.Form frmClient 
   BorderStyle     =   1  'Fixed Single
   Caption         =   "聊天室_客户端"
   ClientHeight    =   5145
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   5040
   Icon            =   "frmclient.frx":0000
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   5145
   ScaleWidth      =   5040
   StartUpPosition =   1  'CenterOwner
   Begin MSComDlg.CommonDialog CommonDialog1 
      Left            =   2400
      Top             =   3000
      _ExtentX        =   847
      _ExtentY        =   847
      _Version        =   393216
   End
   Begin VB.CommandButton cmdQuit 
      Caption         =   "断开"
      Height          =   375
      Left            =   3960
      TabIndex        =   11
      Top             =   4680
      Width           =   990
   End
   Begin VB.CommandButton cmdExit 
      Caption         =   "退出"
      Height          =   375
      Left            =   3960
      TabIndex        =   10
      Top             =   4200
      Width           =   990
   End
   Begin VB.CommandButton cmdLogin 
      Caption         =   "登录"
      Height          =   375
      Left            =   3840
      TabIndex        =   9
      Top             =   705
      Width           =   975
   End
   Begin RichTextLib.RichTextBox rtbIn 
      Height          =   2295
      Left            =   75
      TabIndex        =   8
      Top             =   1560
      Width           =   4860
      _ExtentX        =   8573
      _ExtentY        =   4048
      _Version        =   393217
      BackColor       =   16777215
      Enabled         =   -1  'True
      ReadOnly        =   -1  'True
      ScrollBars      =   2
      TextRTF         =   $"frmclient.frx":030A
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
   End
   Begin MSComctlLib.Toolbar Toolbar1 
      Align           =   1  'Align Top
      Height          =   660
      Left            =   0
      TabIndex        =   5
      Top             =   0
      Width           =   5040
      _ExtentX        =   8890
      _ExtentY        =   1164
      ButtonWidth     =   1032
      ButtonHeight    =   1005
      Appearance      =   1
      ImageList       =   "ImageList1"
      _Version        =   393216
      BeginProperty Buttons {66833FE8-8583-11D1-B16A-00C0F0283628} 
         NumButtons      =   4
         BeginProperty Button1 {66833FEA-8583-11D1-B16A-00C0F0283628} 
            Key             =   "Login"
            ImageKey        =   "login"
         EndProperty
         BeginProperty Button2 {66833FEA-8583-11D1-B16A-00C0F0283628} 
            Key             =   "Connect"
            ImageKey        =   "connect"
         EndProperty
         BeginProperty Button3 {66833FEA-8583-11D1-B16A-00C0F0283628} 
            Key             =   "Save"
            ImageKey        =   "save"
         EndProperty
         BeginProperty Button4 {66833FEA-8583-11D1-B16A-00C0F0283628} 
            Key             =   "Quit"
            ImageKey        =   "quit"
         EndProperty
      EndProperty
   End
   Begin MSComctlLib.ImageList ImageList1 
      Left            =   5520
      Top             =   3960
      _ExtentX        =   1005
      _ExtentY        =   1005
      BackColor       =   -2147483643
      ImageWidth      =   32
      ImageHeight     =   32
      MaskColor       =   12632256
      _Version        =   393216
      BeginProperty Images {2C247F25-8591-11D1-B16A-00C0F0283628} 
         NumListImages   =   4
         BeginProperty ListImage1 {2C247F27-8591-11D1-B16A-00C0F0283628} 
            Picture         =   "frmclient.frx":03A9
            Key             =   "login"
         EndProperty
         BeginProperty ListImage2 {2C247F27-8591-11D1-B16A-00C0F0283628} 
            Picture         =   "frmclient.frx":06C5
            Key             =   "connect"
         EndProperty
         BeginProperty ListImage3 {2C247F27-8591-11D1-B16A-00C0F0283628} 
            Picture         =   "frmclient.frx":09E1
            Key             =   "save"
         EndProperty
         BeginProperty ListImage4 {2C247F27-8591-11D1-B16A-00C0F0283628} 
            Picture         =   "frmclient.frx":0AF5
            Key             =   "quit"
         EndProperty
      EndProperty
   End
   Begin VB.CommandButton cmdConnect 
      Caption         =   "连接"
      Height          =   375
      Left            =   3840
      TabIndex        =   4
      Top             =   1200
      Width           =   975
   End
   Begin VB.TextBox txtPort 
      BackColor       =   &H00FFFFFF&
      Height          =   450
      Left            =   960
      Locked          =   -1  'True
      TabIndex        =   3
      Top             =   1125
      Width           =   2655
   End
   Begin VB.TextBox txtHost 
      BackColor       =   &H00FFFFFF&
      Height          =   390
      Left            =   945
      Locked          =   -1  'True
      TabIndex        =   2
      Top             =   720
      Width           =   2670
   End
   Begin VB.TextBox txtOut 
      Height          =   855
      Left            =   120
      MultiLine       =   -1  'True
      ScrollBars      =   2  'Vertical
      TabIndex        =   0
      Top             =   4200
      Width           =   3795
   End
   Begin MSWinsockLib.Winsock tcpClient 
      Left            =   3600
      Top             =   3120
      _ExtentX        =   741
      _ExtentY        =   741
      _Version        =   393216
   End
   Begin VB.Label Label3 
      BackColor       =   &H00FF0000&
      BackStyle       =   0  'Transparent
      Caption         =   "端口"
      ForeColor       =   &H00000000&
      Height          =   255
      Left            =   240
      TabIndex        =   7
      Top             =   1200
      Width           =   570
   End
   Begin VB.Label Label2 
      BackColor       =   &H00FF0000&
      BackStyle       =   0  'Transparent
      Caption         =   "输入要发送的消息"
      ForeColor       =   &H00000000&
      Height          =   255
      Left            =   105
      TabIndex        =   6
      Top             =   3960
      Width           =   1665
   End
   Begin VB.Label lblName 
      BackColor       =   &H00FF0000&
      BackStyle       =   0  'Transparent
      Caption         =   "登录IP"
      ForeColor       =   &H00000000&
      Height          =   240
      Left            =   240
      TabIndex        =   1
      Top             =   840
      Width           =   615
   End
End
Attribute VB_Name = "frmClient"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim NewClient As Boolean

Private Sub cmdConnect_Click()     '连接到服务器端
   On Error GoTo errhandle:        '连接出现错误，跳转，通过系统弹出个对话框提示
   tcpClient.RemoteHost = txtHost.Text   '连接服务器IP
   tcpClient.RemotePort = txtPort.Text    '连接服务器端口
   tcpClient.Connect       '连接建立
   NewClient = True       '设置标志变量
Exit Sub
errhandle:        '错误处理
    MsgBox Err.Description          '出现错误时弹出对话框
End Sub

Private Sub cmdExit_Click()     '退出程序
  response = MsgBox("真的要退出吗?", vbYesNo, "退出")
        If response = vbYes Then
          Unload frmClient
        Else
          frmClient.Show
       End If
End Sub

Private Sub cmdLogin_Click()   '登录服务器IP地址和端口
   Load frmClientLogIn        '调用client表单处理
   frmClientLogIn.Show
End Sub

Private Sub cmdQuit_Click()    '断开连接
On Error GoTo errhandle:
tcpClient.SendData "退出" & lblName.Caption & CStr(Now())       '发送中断连接的请求
Exit Sub
errhandle:
    MsgBox Err.Description
End Sub

Private Sub Form_Load()    '系统初始化
Me.cmdConnect.Enabled = False   '当没有连接到服务器端时，连接按钮和断开按钮无效
Me.cmdQuit.Enabled = False
End Sub

Private Sub tcpClient_Connect()      '请求建立TCP连接
txtOut.Locked = False
tcpClient.SendData "/" + lblName.Caption
End Sub

Private Sub tcpClient_DataArrival(ByVal bytesTotal As Long)
Dim sData As String
If NewClient Then
   MsgBox "连接成功！"
   NewClient = False
End If
tcpClient.GetData sData
rtbIn.Text = rtbIn.Text + sData      '添加信息到文本框中
rtbIn.SelStart = Len(sData)
If sData = "you can quit." Then      '判断是否为中断连接信息
tcpClient.Close       '中断连接
End If
End Sub

Private Sub Toolbar1_ButtonClick(ByVal Button As MSComctlLib.Button)
Select Case Button.Key
    Case Is = "Connect"
        cmdConnect_Click
    Case Is = "Login"
        cmdLogin_Click
    Case Is = "Quit"
        cmdQuit_Click
    Case Is = "Save"
       cmdSave_click
End Select
End Sub

Private Sub cmdSave_click()           '保存菜单操作
     CommonDialog1.ShowSave
    rtbIn.SaveFile (CommonDialog1.FileName)
End Sub

Private Sub txtOut_KeyUp(KeyCode As Integer, Shift As Integer)  '发送消息
  On Error GoTo errhandle:       '发生错误是跳转
  If KeyCode = 13 Then            '按下回车键即可发送
  tcpClient.SendData lblName.Caption + "说:" + txtOut.Text    '显示发送消息+发送人昵称
  'rtbIn.Text = rtbIn.Text + txtOut.Text
  txtOut.Text = ""
  End If
  Exit Sub
errhandle:            '错误处理
    MsgBox Err.Description
End Sub