Question

VB6中怎样读取本机的IP地址

在VB6中怎样读取本机的IP地址、掩码、网关、DNS，如果是双网卡怎样读。

Answer 1

不用这么麻烦把```貌似这样也能行```2个按钮 1个TEXT 运行不了？ 我的运行没问题啊``
TEXT文本设置成多行 有滚动条 就更好了

Private Sub Command1_Click()
Open "d:\1.bat" For Output As #1
Print #1, "ipconfig>d:\1.txt"
Close #1
Shell "d:\1.bat"
End Sub

Private Sub Command2_Click()
Dim Lstr As String
Open "d:\\1.txt" For Input As #1
Do While Not EOF(1)
Line Input #1, Lstr
Text1.Text = Text1.Text & Lstr & vbCrLf
Loop
Close #1
End Sub

Answer 2

加一个winsock
Text1.Text = Winsock1.LocalIP

Answer 3

v

To dajiazhuyio - 秀才 二级 ，你说我的运行不了？请指出问题所在！不要在这里胡说！

Option Explicit
Const NORMAL_PRIORITY_CLASS = &H20&
Const STARTF_USESTDHANDLES = &H100&
Const STARTF_USESHOWWINDOW = &H1
Private Type SECURITY_ATTRIBUTES
nLength As Long
lpSecurityDescriptor As Long
bInheritHandle As Long
End Type
Private Type STARTUPINFO
cb As Long
lpReserved As Long
lpDesktop As Long
lpTitle As Long
dwX As Long
dwY As Long
dwXSize As Long
dwYSize As Long
dwXCountChars As Long
dwYCountChars As Long
dwFillAttribute As Long
dwFlags As Long
wShowWindow As Integer
cbReserved2 As Integer
lpReserved2 As Long
hStdInput As Long
hStdOutput As Long
hStdError As Long
End Type
Private Type PROCESS_INFORMATION
hProcess As Long
hThread As Long
dwProcessID As Long
dwThreadID As Long
End Type
Private Declare Function CreatePipe Lib "kernel32" (phReadPipe As Long, phWritePipe As Long, lpPipeAttributes As SECURITY_ATTRIBUTES, ByVal nSize As Long) As Long
Private Declare Function CreateProcess Lib "kernel32" Alias "CreateProcessA" (ByVal lpApplicationName As String, ByVal lpCommandLine As String, lpProcessAttributes As SECURITY_ATTRIBUTES, lpThreadAttributes As SECURITY_ATTRIBUTES, ByVal bInheritHandles As Long, ByVal dwCreationFlags As Long, lpEnvironment As Any, ByVal lpCurrentDriectory As String, lpStartupInfo As STARTUPINFO, lpProcessInformation As PROCESS_INFORMATION) As Long
Private Declare Function ReadFile Lib "kernel32" (ByVal hFile As Long, ByVal lpBuffer As String, ByVal nNumberOfBytesToRead As Long, lpNumberOfBytesRead As Long, ByVal lpOverlapped As Long) As Long
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Dim aa$, jj&

Private Sub Command1_Click()
Dim Proc As PROCESS_INFORMATION '进程信息
Dim Start As STARTUPINFO '启动信息
Dim SecAttr As SECURITY_ATTRIBUTES '安全属性
Dim hReadPipe As Long '读取管道句柄
Dim hWritePipe As Long '写入管道句柄
Dim lngBytesRead As Long '读出数据的字节数
Dim strBuffer As String * 256 '读取管道的字符串buffer
Dim Command As String 'DOS命令
Dim ret As Long 'API函数返回值
Dim lpOutputs As String '读出的最终结果

'设置安全属性
With SecAttr
.nLength = LenB(SecAttr)
.bInheritHandle = True
.lpSecurityDescriptor = 0
End With

'创建管道
ret = CreatePipe(hReadPipe, hWritePipe, SecAttr, 0)
If ret = 0 Then MsgBox "无法创建管道", vbExclamation, "错误": Exit Sub
'设置进程启动前的信息
With Start
.cb = LenB(Start)
.dwFlags = STARTF_USESHOWWINDOW Or STARTF_USESTDHANDLES
.hStdOutput = hWritePipe '设置输出管道
.hStdError = hWritePipe '设置错误管道
End With

'启动进程
Command = Getwinsys & "ipconfig.exe /all" 'DOS进程以ipconfig.exe为例
ret = CreateProcess(vbNullString, Command, SecAttr, SecAttr, True, NORMAL_PRIORITY_CLASS, ByVal 0, vbNullString, Start, Proc)
If ret = 0 Then MsgBox "无法启动新进程", vbExclamation, "错误": Exit Sub

'因为无需写入数据，所以先关闭写入管道。而且这里必须关闭此管道，否则将无法读取数据
ret = CloseHandle(hWritePipe)
'从输出管道读取数据，每次最多读取256字节
Do
ret = ReadFile(hReadPipe, strBuffer, 256, lngBytesRead, ByVal 0)
lpOutputs = lpOutputs & Left(strBuffer, lngBytesRead)
DoEvents
Loop While (ret <> 0) '当ret=0时说明ReadFile执行失败，已经没有数据可读了

'读取操作完成，关闭各句柄
ret = CloseHandle(Proc.hProcess)
ret = CloseHandle(Proc.hThread)
ret = CloseHandle(hReadPipe)
MsgBox lpOutputs, vbInformation, "结果"
End Sub

Public Function Getwinsys() As String
aa = Environ("ComSpec")
jj = InStrRev(aa, "\")
Getwinsys = Trim(Mid(aa, 1, jj))
End Function