在VB中如何得到网络中某一台电脑(电脑名)的网卡地址?
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核心提示:[程序语言]MicrosoftVisualBasic4.0,5.0,6.0[运行平台]WINDOWS[功能描述]ipX和NETBIOS接口需要网络地址,该文通过详细的步骤演示了如何通过VB获取网卡地址,在VB中如何得到网络中某一台电脑(电脑名)的网卡地址?,步骤:1)在VisualBasic生成标准的EXE文件,缺省创
[程序语言]MicrosoftVisualBasic4.0,5.0,6.0
[运行平台]WINDOWS
[功能描述]ipX和NETBIOS接口需要网络地址。该文通过详细的步骤演示了如何通过VB获取网卡地址。
步骤:
1)在VisualBasic生成标准的EXE文件。缺省创建Form1。
2)在Form1中添加一命令按钮,缺省名为Command1。
3)把下列代码放到Form1中说明部分。
OptionExplicit
PRivateConstNCBASTAT=&H33
PrivateConstNCBNAMSZ=16
PrivateConstHEAP_ZERO_MEMORY=&H8
PrivateConstHEAP_GENERATE_EXCEPTIONS=&H4
PrivateConstNCBRESET=&H32
PrivateTypeNCB
ncb_commandAsByte'Integer
ncb_retcodeAsByte'Integer
ncb_lsnAsByte'Integer
ncb_numAsByte'Integer
ncb_bufferAsLong'String
ncb_lengthAsInteger
ncb_callnameAsString*NCBNAMSZ
ncb_nameAsString*NCBNAMSZ
ncb_rtoAsByte'Integer
ncb_stoAsByte'Integer
ncb_postAsLong
ncb_lana_numAsByte'Integer
ncb_cmd_cpltAsByte'Integer
ncb_reserve(9)AsByte'Reserved,mustbe0
ncb_eventAsLong
EndType
PrivateTypeADAPTER_STATUS
adapter_address(5)AsByte'AsString*6
rev_majorAsByte'Integer
reserved0AsByte'Integer
adapter_typeAsByte'Integer
rev_minorAsByte'Integer
durationAsInteger
frmr_recvAsInteger
frmr_xmitAsInteger
iframe_recv_errAsInteger
xmit_abortsAsInteger
xmit_successAsLong
recv_successAsLong
iframe_xmit_errAsInteger
recv_buff_unavailAsInteger
t1_timeoutsAsInteger
ti_timeoutsAsInteger
Reserved1AsLong
free_ncbsAsInteger
max_cfg_ncbsAsInteger
max_ncbsAsInteger
xmit_buf_unavailAsInteger
max_dgram_sizeAsInteger
pending_sessAsInteger
max_cfg_sessAsInteger
max_sessAsInteger
max_sess_pkt_sizeAsInteger
name_countAsInteger
EndType
PrivateTypeNAME_BUFFER
nameAsString*NCBNAMSZ
name_numAsInteger
name_flagsAsInteger
EndType
PrivateTypeASTAT
adaptAsADAPTER_STATUS
NameBuff(30)AsNAME_BUFFER
EndType
PrivateDeclareFunctionNetbiosLib"netapi32.dll"(pncbAsNCB)AsByte
PrivateDeclareSubCopyMemoryLib"kernel32"Alias"RtlMoveMemory"(hpvDestAsAny,ByValhpvSourceAsLong,ByValcbCopyAsLong)
PrivateDeclareFunctionGetProcessHeapLib"kernel32"()AsLong
PrivateDeclareFunctionHeapAllocLib"kernel32"(ByValhHeapAsLong,ByValdwFlagsAsLong,ByValdwBytesAsLong)AsLong
PrivateDeclareFunctionHeapFreeLib"kernel32"(ByValhHeapAsLong,ByValdwFlagsAsLong,lpMemAsAny)AsLong
把下面的代码放入Command1_Click的事件中:
PrivateSubCommand1_Click()
DimmyNcbAsNCB
DimbRetAsByte
myNcb.ncb_command=NCBRESET
bRet=Netbios(myNcb)
myNcb.ncb_command=NCBASTAT
myNcb.ncb_lana_num=0
myNcb.ncb_callname="* "
DimmyASTATAsASTAT,tempASTATAsASTAT
DimpASTATAsLong
myNcb.ncb_length=Len(myASTAT)
Debug.PrintErr.LastDllError
pASTAT=HeapAlloc(GetProcessHeap(),HEAP_GENERATE_EXCEPTIONSOrHEAP_ZERO_MEMORY,myNcb.ncb_length)
IfpASTAT=0Then
Debug.Print"memoryallcoationfailed!"
ExitSub
EndIf
myNcb.ncb_buffer=pASTAT
bRet=Netbios(myNcb)
Debug.PrintErr.LastDllError
CopyMemorymyASTAT,myNcb.ncb_buffer,Len(myASTAT)
MsgBoxHex(myASTAT.adapt.adapter_address(0))&""&_
Hex(myASTAT.adapt.adapter_address(1))_
&""&Hex(myASTAT.adapt.adapter_address(2))&""_
&Hex(myASTAT.adapt.adapter_address(3))_
&""&Hex(myASTAT.adapt.adapter_address(4))&""_
&Hex(myASTAT.adapt.adapter_address(5))
HeapFreeGetProcessHeap(),0,pASTAT
EndSub
4)按F5,运行该程序。
5)点击Command1。注意,网卡地址将在一信息框中显示出来。->
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