form1.frm

Visual Basic 6 网络编程实例教程ch01～ch02分别包含了书中各章的主要程序文件

VERSION 5.00
Begin VB.Form Form1 
   BorderStyle     =   1  'Fixed Single
   Caption         =   "由主机名获取IP地址"
   ClientHeight    =   2490
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   3480
   Icon            =   "Form1.frx":0000
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   2490
   ScaleWidth      =   3480
   StartUpPosition =   2  '屏幕中心
   Begin VB.Frame Frame1 
      Height          =   2055
      Left            =   240
      TabIndex        =   0
      Top             =   120
      Width           =   3015
      Begin VB.CommandButton Command1 
         Caption         =   "运行(&R)"
         Default         =   -1  'True
         Height          =   375
         Left            =   1080
         TabIndex        =   5
         Top             =   1440
         Width           =   1095
      End
      Begin VB.TextBox Text2 
         Height          =   270
         Left            =   960
         Locked          =   -1  'True
         TabIndex        =   4
         Top             =   960
         Width           =   1695
      End
      Begin VB.TextBox Text1 
         Height          =   270
         Left            =   960
         TabIndex        =   2
         Text            =   "请输入主机名"
         Top             =   600
         Width           =   1695
      End
      Begin VB.Label Label2 
         AutoSize        =   -1  'True
         BackStyle       =   0  'Transparent
         Caption         =   "IP地址"
         Height          =   180
         Left            =   240
         TabIndex        =   3
         Top             =   1080
         Width           =   540
      End
      Begin VB.Label Label1 
         AutoSize        =   -1  'True
         BackStyle       =   0  'Transparent
         Caption         =   "主机名"
         Height          =   180
         Left            =   240
         TabIndex        =   1
         Top             =   600
         Width           =   540
      End
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Private Sub Command1_Click()
    Dim sHostName As String
   
   If SocketsInitialize() Then
   
      sHostName = Trim(Text1.Text)
      Text2.Text = GetIPFromHostName(sHostName)
      SocketsCleanup
   Else
           MsgBox "32位Windows的Windows Sockets无响应"
   
   End If

End Sub