'获得网络连接
Private Const RAS95_MaxEntryName = 256
Private Const RAS95_MaxDeviceName = 128
Private Const RAS95_MaxDeviceType = 16Private Type RASCONN95
'set dwsize to 412
dwSize As Long '该结构所占内存的大小(Bytes)
hRasConn As Long '活动连接的句柄
szEntryName(RAS95_MaxEntryName) As Byte '活动连接的名称
szDeviceName(RAS95_MaxDeviceName) As Byte '活动连接的所用的设备名称
szDeviceType(RAS95_MaxDeviceType) As Byte '活动连接的所用的设备类型
End TypePrivate Declare Function RasEnumConnections Lib "RasApi32.DLL" Alias "RasEnumConnectionsA" _
(lprasconn As RASCONN95, lpcb As Long, lpcConnections As Long) As LongPrivate lpchWnd As RASCONN95
Private lpcWidth As Long
Private lpcConnNum As Long
'----------------------------------------
'
'获得IP地址
Private Const ras_MaxIPAddress = 15Private Type RASPPPIP
dwSize As Long 'set dwsize to 40
dwError As Long
szIpAddress(ras_MaxIPAddress) As Byte
szServerAddress(ras_MaxIPAddress) As Byte
End TypePrivate Declare Function RasGetProjectionInfo Lib "RasApi32.DLL" Alias "RasGetProjectionInfoA" ( _
ByVal hRasConn As Long, ByVal rasprojection As Long, lpprojection As RASPPPIP, lpcb As Long) As LongPrivate Const RASP_PppIp = &H8021
Private lpcPPPIP As RASPPPIP
Private lpcb As Long
'----------------------------------------------------------
Private Sub Form_Load()
If RasEnumConnections(lpchWnd, lpcWidth, lpcConnNum) = 0 Then
If lpcConnNum > 0 Then
lpcPPPIP.dwSize = 40 If RasGetProjectionInfo(lpchWnd.hRasConn, RASP_PppIp, lpcPPPIP, 40) = 0 Then
'**************************************************
Debug.Print StrConv(lpcPPPIP.szIpAddress, vbUnicode)
End IfEnd Sub
#######
我已经用RasEnumConnections取得了句柄lpchWnd.hRasConn,为什么RasGetProjectionInfo(lpchWnd.hRasConn就不可以用呢????
Private Const RAS95_MaxEntryName = 256
Private Const RAS95_MaxDeviceName = 128
Private Const RAS95_MaxDeviceType = 16Private Type RASCONN95
'set dwsize to 412
dwSize As Long '该结构所占内存的大小(Bytes)
hRasConn As Long '活动连接的句柄
szEntryName(RAS95_MaxEntryName) As Byte '活动连接的名称
szDeviceName(RAS95_MaxDeviceName) As Byte '活动连接的所用的设备名称
szDeviceType(RAS95_MaxDeviceType) As Byte '活动连接的所用的设备类型
End TypePrivate Declare Function RasEnumConnections Lib "RasApi32.DLL" Alias "RasEnumConnectionsA" _
(lprasconn As RASCONN95, lpcb As Long, lpcConnections As Long) As LongPrivate lpchWnd As RASCONN95
Private lpcWidth As Long
Private lpcConnNum As Long
'----------------------------------------
'
'获得IP地址
Private Const ras_MaxIPAddress = 15Private Type RASPPPIP
dwSize As Long 'set dwsize to 40
dwError As Long
szIpAddress(ras_MaxIPAddress) As Byte
szServerAddress(ras_MaxIPAddress) As Byte
End TypePrivate Declare Function RasGetProjectionInfo Lib "RasApi32.DLL" Alias "RasGetProjectionInfoA" ( _
ByVal hRasConn As Long, ByVal rasprojection As Long, lpprojection As RASPPPIP, lpcb As Long) As LongPrivate Const RASP_PppIp = &H8021
Private lpcPPPIP As RASPPPIP
Private lpcb As Long
'----------------------------------------------------------
Private Sub Form_Load()
If RasEnumConnections(lpchWnd, lpcWidth, lpcConnNum) = 0 Then
If lpcConnNum > 0 Then
lpcPPPIP.dwSize = 40 If RasGetProjectionInfo(lpchWnd.hRasConn, RASP_PppIp, lpcPPPIP, 40) = 0 Then
'**************************************************
Debug.Print StrConv(lpcPPPIP.szIpAddress, vbUnicode)
End IfEnd Sub
#######
我已经用RasEnumConnections取得了句柄lpchWnd.hRasConn,为什么RasGetProjectionInfo(lpchWnd.hRasConn就不可以用呢????
忙了,不好意思就不幫你調試了。Private Const WS_VERSION_REQD = &H101
Private Const WS_VERSION_MAJOR = WS_VERSION_REQD \ &H100 And &HFF&
Private Const WS_VERSION_MINOR = WS_VERSION_REQD And &HFF&
Private Const MIN_SOCKETS_REQD = 1
Private Const SOCKET_ERROR = -1
Private Const WSADescription_Len = 256
Private Const WSASYS_Status_Len = 128Private Type HOSTENT
hName As Long
hAliases As Long
hAddrType As Integer
hLength As Integer
hAddrList As Long
End TypePrivate Type WSADATA
wversion As Integer
wHighVersion As Integer
szDescription(0 To WSADescription_Len) As Byte
szSystemStatus(0 To WSASYS_Status_Len) As Byte
iMaxSockets As Integer
iMaxUdpDg As Integer
lpszVendorInfo As Long
End TypePrivate Declare Function WSAGetLastError Lib "WSOCK32.DLL" () As Long
Private Declare Function WSAStartup Lib "WSOCK32.DLL" (ByVal wVersionRequired&, lpWSAData As WSADATA) As Long
Private Declare Function WSACleanup Lib "WSOCK32.DLL" () As Long
Private Declare Function gethostbyname Lib "WSOCK32.DLL" (ByVal hostname$) As Long
Private Declare Sub RtlMoveMemory Lib "KERNEL32" (hpvDest As Any, ByVal hpvSource&, ByVal cbCopy&)
Function hibyte(ByVal wParam As Integer)
hibyte = wParam \ &H100 And &HFF&
End FunctionFunction lobyte(ByVal wParam As Integer)
lobyte = wParam And &HFF&
End FunctionSub SocketsInitialize()
Dim WSAD As WSADATA
Dim iReturn As Integer
Dim sLowByte As String, sHighByte As String, sMsg As String
iReturn = WSAStartup(WS_VERSION_REQD, WSAD)
If iReturn <> 0 Then
MsgBox "Winsock.dll is not responding."
End
End If
If lobyte(WSAD.wversion) < WS_VERSION_MAJOR Or (lobyte(WSAD.wversion) = WS_VERSION_MAJOR And hibyte(WSAD.wversion) < WS_VERSION_MINOR) Then
sHighByte = Trim$(Str$(hibyte(WSAD.wversion)))
sLowByte = Trim$(Str$(lobyte(WSAD.wversion)))
sMsg = "Windows Sockets version " & sLowByte & "." & sHighByte
sMsg = sMsg & " is not supported by winsock.dll "
MsgBox sMsg
End
End If
If WSAD.iMaxSockets < MIN_SOCKETS_REQD Then
sMsg = "This application requires a minimum of "
sMsg = sMsg & Trim$(Str$(MIN_SOCKETS_REQD)) & " supported sockets."
MsgBox sMsg
End
End If
End SubSub SocketsCleanup()
Dim lReturn As Long
lReturn = WSACleanup()
If lReturn <> 0 Then
MsgBox "Socket error " & Trim$(Str$(lReturn)) & " occurred in Cleanup "
End
End If
End SubSub Form_Load()
SocketsInitialize
End SubPrivate Sub Form_Unload(Cancel As Integer)
SocketsCleanup
End SubPrivate Sub Command1_click()
Dim hostent_addr As Long
Dim host As HOSTENT
Dim hostip_addr As Long
Dim temp_ip_address() As Byte
Dim i As Integer
Dim ip_address As String
hostent_addr = gethostbyname(Text1)
If hostent_addr = 0 Then
MsgBox "Can't resolve name."
Exit Sub
End If
RtlMoveMemory host, hostent_addr, LenB(host)
RtlMoveMemory hostip_addr, host.hAddrList, 4
ReDim temp_ip_address(1 To host.hLength)
RtlMoveMemory temp_ip_address(1), hostip_addr, host.hLength
For i = 1 To host.hLength
ip_address = ip_address & temp_ip_address(i) & "."
Next
ip_address = Mid$(ip_address, 1, Len(ip_address) - 1)
MsgBox ip_address
End Sub