远程唤醒 - 悦读

远程唤醒

远程唤醒技术(WOL，Wake-on-LAN) 是由网卡配合其他软硬件，可以通过局域网实现远程开机的一种技术，
无论被访问的计算机离我们有多远、处于什么位置，只要处于同一局域网内，就都能够被随时启动。
这种技术非常适合具有远程网络管理要求的环境，如果有这种要求在选购网卡时应注意是否具有此功能。

可被远程唤醒的计算机对硬件有一定的要求，主要表现在网卡、主板和电源上。

1.网卡能否实现远程唤醒，其中最主要的一个部件就是支持WOL的网卡。
远端被唤醒计算机的网卡必须支持WOL，而用于唤醒其他计算机的网卡则不必支持WOL。
另外，当一台计算机中安装有多块网卡时，只将其中的一块设置为可远程唤醒。

2.主板主板也必需支持远程唤醒，可通过查看CMOS的"Power Management Setup"菜单中是否拥有
"Wake on LAN"项而确认。另外，支持远程唤醒的主板上通常都拥有一个专门的3芯插座，
以给网卡供电（PCI2.1标准）。由于现在的主板通常支持PCI 2.2标准，
可以直接通过PCI插槽向网卡提供+3.3V Standby电源，即使不连接WOL电源线也一样能够实现远程唤醒，
因此，可能不再提供3芯插座。主板是否支持PCI2.2标准，
可通过查看CMOS的"Power Management Setup"菜单中是否拥有"Wake on PCI Card"项来确认。

3.电源若欲实现远程唤醒，计算机安装的必须是符合ATX 2.01标准的ATX电源，
+5V Standby电流至少应在600mA以上。

计算机拥有远程唤醒功能并不等于能够实现远程唤醒，在实现之前，
还必须对硬件作必要的连接和设置。以及需要借助相应的软件才能实现。
例如使用AMD公司的Magic Packet来作为远程唤醒软件等

created: 2004 / 06 / 02

* created: 2 : 6 : 2004 10 : 24

* filename: c:documents and settingsadministrator桌面wakeup.cpp

* file path: c:documents and settingsadministrator桌面

* file base : wakeup

* file ext: cpp

* author: XiaoPing Zhang

* purpose:

*********************************************************************/

#include " stdafx.h "

#include

#define MAC_ADDR_LEN 6

#define MAGIC_DATA_LEN 102

#pragma comment(lib, "iphlpapi.lib")

BOOL GetMacFromIP( const char * pIP)

{

HRESULT hr;

IPAddr ipAddr;

ULONG pulMac[2];

ULONG ulLen;

ipAddr = inet_addr ("216.145.25.31");

memset (pulMac, 0xff, sizeof (pulMac));

ulLen = 6;

hr = SendARP (ipAddr, 0, pulMac, &ulLen);

printf ("Return %08x, length %8d ", hr, ulLen);

size_t i, j;

char * szMac = new char[ulLen*3];

PBYTE pbHexMac = (PBYTE) pulMac;

// Convert the binary MAC address into human-readable

for (i = 0, j = 0; i < ulLen - 1; ++i) {

j += sprintf (szMac + j, "%02X:", pbHexMac[i]);

}

sprintf (szMac + j, "%02X", pbHexMac[i]);

printf ("MAC address %s ", szMac);

delete [] szMac;

return TRUE;

}

// 输入6个字节的mac地址

BOOL WakeupSinglePC( const unsigned char * pMac)

{

// TODO: Add your command handler code here

if (pMac == NULL)

{

TRACE("Mac address error!");

return FALSE;

}

WSADATA wsaData;

int err = WSAStartup( MAKEWORD(2, 2), &wsaData );

if ( err != 0 )

{

TRACE("WSAStartup error %d !", WSAGetLastError());

return FALSE;

}

if ( LOBYTE( wsaData.wVersion ) != 2 ||

HIBYTE( wsaData.wVersion ) != 2 )

{

TRACE("WinSock DLL not supports 2.2 !");

return FALSE;

}

{

SOCKET sFirst = socket(AF_INET, SOCK_DGRAM, 0);

if (sFirst == INVALID_SOCKET)

{

TRACE("socket error %d !", WSAGetLastError());

break;

}

{

BOOL bOptVal = TRUE;

int iOptLen = sizeof(BOOL);

err = setsockopt(sFirst, SOL_SOCKET, SO_BROADCAST, (char*)&bOptVal, iOptLen);

if (err == SOCKET_ERROR)

{

TRACE("setsockopt error %d !", WSAGetLastError());

break;

}

char szMagicData[MAGIC_DATA_LEN];

memset(szMagicData, 0xff, sizeof(szMagicData));

for(int i=MAC_ADDR_LEN; i {

memcpy(szMagicData+i, pMac, sizeof(unsigned char)*MAC_ADDR_LEN);

}

sockaddr_in addr;

addr.sin_family = AF_INET;

addr.sin_port = htons(0);

addr.sin_addr.s_addr = htonl(INADDR_BROADCAST);

err = sendto(sFirst, szMagicData, sizeof(szMagicData), 0, (LPSOCKADDR)&addr, sizeof(addr));

if (err == SOCKET_ERROR)

{

TRACE("sendto error %d !", WSAGetLastError());

break;

}

} while(0);

err = closesocket(sFirst);

if (err == SOCKET_ERROR)

{

TRACE("closesocket error %d !", WSAGetLastError());

break;

}

} while(0);

err = WSACleanup();

if ( err == SOCKET_ERROR )

{

TRACE("WSACleanup error %d !", WSAGetLastError());

return FALSE;

}

return TRUE;

}

// 输入6个字节的mac地址数组

BOOL WakeupMultiPC( int iNum, const unsigned char * pszMac[])

{

// TODO: Add your command handler code here

if (pszMac == NULL)

{

TRACE("Mac address Error!", WSAGetLastError());

return FALSE;

}

WSADATA wsaData;

int err = WSAStartup( MAKEWORD(2, 2), &wsaData );

if ( err != 0 )

{

TRACE("WSAStartup Error %d !", WSAGetLastError());

return FALSE;

}

if ( LOBYTE( wsaData.wVersion ) != 2 ||

HIBYTE( wsaData.wVersion ) != 2 )

{

TRACE("WinSock DLL not supports 2.2");

return FALSE;

}

{

SOCKET sFirst = socket(AF_INET, SOCK_DGRAM, 0);

if (sFirst == INVALID_SOCKET)

{

TRACE("socket error %d !", WSAGetLastError());

break;

}

{

BOOL bOptVal = TRUE;

int iOptLen = sizeof(BOOL);

err = setsockopt(sFirst, SOL_SOCKET, SO_BROADCAST, (char*)&bOptVal, iOptLen);

if (err == SOCKET_ERROR)

{

TRACE("setsockopt error %d !", WSAGetLastError());

break;

}

sockaddr_in addr;

addr.sin_family = AF_INET;

addr.sin_port = htons(0);

addr.sin_addr.s_addr = htonl(INADDR_BROADCAST);

char szMagicData[MAGIC_DATA_LEN];

for (int index=0; index {

memset(szMagicData, 0xff, sizeof(szMagicData));

for(int i=MAC_ADDR_LEN; i {

memcpy(szMagicData+i, pszMac[index], sizeof(unsigned char)*MAC_ADDR_LEN);

}

err = sendto(sFirst, szMagicData, sizeof(szMagicData), 0, (LPSOCKADDR)&addr, sizeof(addr));

if (err == SOCKET_ERROR)

{

TRACE("sendto error %d !", WSAGetLastError());

break;

}

} while(0);

err = closesocket(sFirst);

if (err == SOCKET_ERROR)

{

TRACE("closesocket error %d !", WSAGetLastError());

break;

}

} while(0);

err = WSACleanup();

if ( err == SOCKET_ERROR )

{

TRACE("WSACleanup error %d !", WSAGetLastError());

return FALSE;

}

return TRUE;

}

求教－vb实现远程唤醒 VB - 网络编程 - CSDN社区 community_csdn_net.mht

'类模块   CMagicPacket
'************************************************************************
'
'   CMagicPacket   -   AMD   Magic   Packet   (Wake-On-Lan)   Class   Module   (v1.1)
'   By   Richard   Larson,   1999/2000   -   Requires   VB   6.0   or   better.
'
'   This   class   encapsulates   the   functionality   necessary   to   send   Wake-on-Lan
'   packets   to   WFM   (Wired-For-Management)   enabled   computers   that   reside   on
'   an   IP   network.
'************************************************************************
'
'   Version   History:
'
'   1.1   -   Fixed   a   bug   that   prevented   IP   addresses   with   individual   octet
'               values   of   zero   from   being   properly   validated   in   the
'               ValidateIPAddress()   function.
'   1.0   -   Initial   release   to   Internet.
'
'************************************************************************
'
'   External   Class   Dependencies:
'
'   This   class   depends   on   the   existance   of   a   winsock   control   on   a   form
'   somewhere   in   the   project.     Each   instance   of   this   object   must   have   a
'   reference   set   to   such   a   winsock   control   before   it   can   be   used   to
'   wake-up   a   workstation.     This   is   accomplished   via   the   WinsockControl
'   property   of   the   class.
'************************************************************************
'
'   To   create   this   class,   open   a   new   VB6   project   and   add   a   class   module   to
'   it.     Name   the   class   module   "CMagicPacket"   and   then   paste   this   code
'   snippet   into   it.       Then   save   the   class   and   add   it   to   any   project   that
'   needs   this   functionality.
'
'   To   use   an   object   of   this   class,   you   must   provide   an   MS   Winsock   control
'   on   one   of   your   forms   and   then   set   the   WinSockControl   property   to   it   as
'   a   reference.     Then   you   simply   set   the   NICAddress,   IPSubnetAddress   and
'   IPSubnetMask   properties   of   the   new   object   and   call   the   wakeup   method.

'WinsockControl

'   Example:
'
'       Dim   WOL_WS   as   CMagicPacket
'       Set   WOL_WS   =   New   CMagicPacket
'       With   WOL_WS
'           .WinsockCtrl=Winsock1
'           .NICAddress="0008d7aa4e24"
'           .IPSubnetAddress="172.17.1.0"
'           .IPSubnetMask="255.255.255.0"
'           .WakeUp
'       End   With
'       Set   WOL_WS=Nothing
'
'   If   the   IPSubnetAddress   or   IPSubnetMask   properties   are   left   blank
'   (or   are   determined   to   be   invalid),   the   packet   will   be   broadcast   on
'   the   IP   subnet   local   to   the   workstation   that   the   object   is   running   on.
'************************************************************************

'Object-level   constants   and   enums...
Private   Const   ERROR_BASE   =   vbObjectError   +   2000
Private   Const   ERROR_INVALID_NIC_ADDRESS   =   ERROR_BASE   +   1
Private   Const   ERROR_INVALID_IP_SUBNET_ADDRESS   =   ERROR_BASE   +   2
Private   Const   ERROR_INVALID_IP_SUBNET_MASK   =   ERROR_BASE   +   3
Private   Const   ERROR_INVALID_WINSOCK_REFERENCE   =   ERROR_BASE   +   4
Private   Const   ERROR_NO_WINSOCK_REFERENCE_AVAILABLE   =   ERROR_BASE   +   5

'Object-level   variables...
Private   m_WinsockControl   As   Control
Private   m_NICAddress   As   String
Private   m_IPSubnetAddress   As   String
Private   m_IPSubnetMask   As   String

'************************************************************************
'   Property   WinsockControl()
'
'   This   is   the   property   assignment   function   (LET   only)   for   the   Winsock
'   Control   property.       It   validates   that   the   winsock   control   being
'   assigned   is   really   a   winsock   control,   and   that   it   is   not   set   to
'   "nothing".     If   either   of   these   checks   fails,   an   appropriate   error
'   message   is   raised   back   to   the   caller.
'************************************************************************
Public   Property   Let   WinsockControl(ByRef   RefWinsock   As   Control)

          'Check   for   uninitialized   controls...
          If   RefWinsock   Is   Nothing   Then
                  Err.Raise   ERROR_NO_WINSOCK_REFERENCE_AVAILABLE,   _
                                      "CMagicPacket.WinsockControl(LET)",   _
                                      "An   attempt   was   made   to   set   the   WinsockControl   property   "   &   _
                                      "to   an   uninitialized   control"
          End   If

          'Check   for   invalid   control   types...
          If   TypeOf   RefWinsock   Is   Winsock   Then
                  Set   m_WinsockControl   =   RefWinsock
          Else
                  Err.Raise   ERROR_INVALID_WINSOCK_REFERENCE,   _
                                      "CMagicPacket.WinsockControl(LET)",   _
                                      "An   attempt   was   made   to   set   the   WinsockControl   property   "   &   _
                                      "to   a   non-winsock   control"
          End   If

          'It   passed   the   test,   so   set   our   reference   to   it...
          Set   m_WinsockControl   =   RefWinsock

End   Property

'************************************************************************
'   Property   IPSubnetAddress()
'
'   These   are   the   assignment   functions   for   the   IP   Address   property.   LET
'   validates   the   IP   subnet   address   being   assigned   and   raises   an   error   back
'   to   the   calling   function   if   it   was   not   a   valid   32-bit   IP   address.   GET
'   returns   the   current   address   in   dotted-decimal   notation   (www.xxx.yyy.zzz)
'(www.xxx.yyy.zzz)
'************************************************************************
Public   Property   Let   IPSubnetAddress(ByVal   NewAddress   As   String)

          'Set   the   new   IP   subnet   address...
          m_IPSubnetAddress   =   ValidateIPAddress(NewAddress)

          'And   raise   an   error   if   it   is   not   valid...
          If   m_IPSubnetAddress   =   ""   Then
                  Err.Raise   ERROR_INVALID_IP_SUBNET_ADDRESS,   _
                                      "CMagicPacket.IPSubnetAddress(LET)",   _
                                      "Invalid   IP   Subnet   Address"
          End   If

End   Property

Public   Property   Get   IPSubnetAddress()   As   String
          IPSubnetAddress   =   m_IPSubnetAddress
End   Property

'************************************************************************
'   Property   IPSubnetMask()
'
'   These   are   the   assignment   functions   for   the   IP   Subnet   Mask   property.   LET
'   validates   the   IP   subnet   mask   being   assigned   and   raises   an   error   back   to
'   the   calling   function   if   it   was   not   a   valid   32-bit   IP   mask   address.   GET
'   returns   the   current   address   in   dotted-decimal   notation   (www.xxx.yyy.zzz)
'************************************************************************
Public   Property   Let   IPSubnetMask(ByVal   NewMask   As   String)

          'Set   the   new   IP   subnet   address...
          m_IPSubnetMask   =   ValidateIPAddress(NewMask)

          'And   raise   an   error   if   it   is   not   valid...
          If   m_IPSubnetAddress   =   ""   Then
                  Err.Raise   ERROR_INVALID_IP_SUBNET_MASK,   _
                                      "CMagicPacket.IPSubnetMask(LET)",   _
                                      "Invalid   IP   Subnet   Address"
          End   If

End   Property

Public   Property   Get   IPSubnetMask()   As   String
          IPSubnetMask   =   m_IPSubnetMask
End   Property

'************************************************************************
'   Property   NICAddress()
'
'   These   are   the   assignment   functions   for   the   NIC   Address   property.   LET
'   validates   the   NIC   Address   being   assigned   and   raises   an   error   back   to
'   the   calling   function   if   it   was   not   a   valid   48-bit   NIC   address.   GET
'   returns   the   48-bit   unformatted   hex   address   in   the   form   "1A2B3C4D5E6F"
'************************************************************************
Public   Property   Let   NICAddress(ByVal   NewNicAddress   As   String)

          'Set   the   new   NIC   address...
          m_NICAddress   =   ValidateNICAddress(NewNicAddress)

          'And   raise   an   error   if   it   was   not   valid...
          If   m_NICAddress   =   ""   Then
                  Err.Raise   ERROR_INVALID_NIC_ADDRESS,   _
                                      "CMagicPacket.NicAddress(Let)",   _
                                      "Invalid   Nic   Address"
          End   If

End   Property

Top

2 楼aohan（aohan）回复于 2005-05-22 00:46:27 得分 0 Public   Property   Get   NICAddress()   As   String
          NICAddress   =   m_NICAddress
End   Property

'************************************************************************
'   Method   WakeUp()
'
'   This   method   is   called   in   order   to   send   the   wake-on-lan   magic   packet   to
'   the   machine   with   the   48-bit   hardware   address   specified   in   NICAdress
'   residing   on   the   IP   subnet   specified   by   the   IPSubnetAddress/IPSubnetMask
'   properties.     It   uses   the   winsock   control   that   was   set   in   the
'   WinSockCtrl   property   to   do   the   actual   packet   transfer.     An   error   flag
'   will   be   raised   back   to   the   caller   if   any   of   these   properties   are   set
'   incorrectly.
'************************************************************************
Public   Sub   WakeUp()

          Dim   ActualNICAddress   As   String

          'Setup   error   handler...
          On   Error   GoTo   Error_Handler1

          'Check   for   valid   properties   before   sending   the   packet...
          ActualNICAddress   =   ValidateNICAddress(m_NICAddress)

          If   ActualNICAddress   =   ""   Then
                  Err.Raise   ERROR_INVALID_NIC_ADDRESS,   _
                                      "CMagicPacket.Wakeup()",   _
                                      "The   NICAddress   property   does   not   contain   a   "   &   _
                                      "valid   NIC   address"
          End   If

          If   m_WinsockControl   Is   Nothing   Then
                  Err.Raise   ERROR_NO_WINSOCK_REFERENCE_AVAILABLE,   _
                                      "CMagicPacket.Wakeup()",   _
                                      "The   WinsockCtrl   property   has   not   been   set   to   "   &   _
                                      "a   valid   MS-Winsock   control"
          End   If

          'Everything   is   OK,   so   send   the   packet   on   its   way...
          SendMagicPacketTo   m_IPSubnetAddress,   m_IPSubnetMask,   _
                                              m_NICAddress,   m_WinsockControl

Exit   Sub

Error_Handler1:

          'For   now,   just   return   the   error   to   the   caller   with   a   modified   source...
          '     Err.Raise   Err.Number,   Err.Source   &   "   <Raised   From   CMagicPacket.WakeUp()>",   _
                  Err.Description   ,   Err.HelpFile,   Err.HelpContext

End   Sub

'************************************************************************
'   SendMagicPacketTo()
'
'   Send   a   "Magic-packet"   to   a   workstation   that   supports   the   "wake-on-lan"
'   specification.     This   routine   takes   the   IP   address   of   the   subnet   on
'   which   the   workstation   to   be   "awakened"   resides,   and   the   48-bit   ethernet
'   hardware   address   of   the   workstation's   NIC.     It   then   builds   and   sends   a
'   "magic   packet"   to   that   workstation   which   will   wake   it   up   (as   though
'   someone   switched   on   the   power).

'************************************************************************
Private   Sub   SendMagicPacketTo(IPSubnetAddress   As   String,   _
                                                              IPSubnetMask   As   String,   _
                                                              HWAddress   As   String,   _
                                                              WinsockCtrl   As   Winsock)

          'Local   Variables...
          Dim   MagicPacketData(0   To   101)   As   Byte
          Dim   HWAddressByteValues(0   To   5)   As   Byte
          Dim   ByteIndex   As   Byte
          Dim   NICAddressIndex   As   Byte

          'Setup   error   handler...
          On   Error   GoTo   Error_Handler

          'First   convert   the   Ethernet   HWAddress   to   a   byte   array...
          HWAddressStrToByteArray   HWAddress,   HWAddressByteValues()

          'Now   get   the   IP   broadcast   address   for   the   IP   subnet   we   want   to   use...
          IPSubnetAddress   =   IPSubnetAddressToBroadcastAddress(IPSubnetAddress,   IPSubnetMask)

          'Setup   the   Magic-Packet   synchronization   byte   sequence   (0xFFFFFFFFFFFF)...
          For   ByteIndex   =   0   To   5
                  MagicPacketData(ByteIndex)   =   255
          Next

          'Now   add   the   Magic-Packet   HWAddress   sequence   (16   HW   Addresses   in   a   row)...
          For   NICAddressIndex   =   0   To   15
                  For   ByteIndex   =   0   To   5
                          MagicPacketData((NICAddressIndex   *   6)   +   ByteIndex   +   6)   =   _
                                                          HWAddressByteValues(ByteIndex)
                  Next
          Next

          'Send   a   datagram   containing   the   magic-packet   data   to   the   appropriate   subnet...
          m_WinsockControl.RemoteHost   =   IPSubnetAddress
          m_WinsockControl.Protocol   =   sckUDPProtocol
          m_WinsockControl.SendData   MagicPacketData
          m_WinsockControl.Close

Exit   Sub

Error_Handler:

          'For   now,   just   return   the   error   back   to   the   caller   with   a   modified   source...
          Err.Raise   Err.Number,   Err.Source   &   _
                              "   <Raised   From   CMagicPacket.SendMagicPacketTo()>",   _
                              Err.Description,   Err.HelpFile,   Err.HelpContext

End   Sub

'************************************************************************
'   ValidateNICAddress()
'
'   This   function   takes   a   string   and   determines   if   it   is   a   valid   NIC
'   address   by   checking   it's   length   (6-hex   bytes,   48-bits)   and   that   it   is
'   a   valid   hexadecimal   value   (each   nibble   is   0-9,   or   A-F).     If   all   is   OK,
'   the   function   returns   a   cleaned   version   of   the   address   (with   no
'   whitespace   characters   and   all   upper   case   values),   otherwise   it   returns
'   a   blank   zero-length   string.
'
'   Based   on   this   routine,   all   of   the   following   addresses   are   valid:

'************************************************************************
Private   Function   ValidateNICAddress(AddressToValidate   As   String)   As   String

          'Local   Constants...
          Const   VALID_NIC_ADDRESS_LENGTH   =   12

          'Local   Variables...
          Dim   HexCharIndex   As   Long
          Dim   HexChar   As   String
          Dim   InitialAddress   As   String
          Dim   ReducedAddress   As   String

          'Init   local   variables...
          ReducedAddress   =   ""
          InitialAddress   =   UCase$(Trim$(AddressToValidate))

          'Eliminate   all   non-hexadecimal   characters   from   the   address...
          For   HexCharIndex   =   1   To   Len(InitialAddress)
                  HexChar   =   Mid$(InitialAddress,   HexCharIndex,   1)
                  Select   Case   HexChar
                      Case   "0"   To   "9",   "A"   To   "F":   ReducedAddress   =   ReducedAddress   &   HexChar
                  End   Select
          Next

          'Return   the   appropriate   value...
          If   Len(ReducedAddress)   =   VALID_NIC_ADDRESS_LENGTH   Then
                  ValidateNICAddress   =   UCase$(ReducedAddress)
          Else
                  ValidateNICAddress   =   ""
          End   If

End   Function

'************************************************************************
'   ValidateIPAddress()
'
'   This   function   takes   an   IP   address   in   dotted   decimal   format   and   verifies
'   that   there   are   4   octets   of   data   and   that   the   value   of   each   octet   is
'   between   zero   and   255.     This   function   does   NOT   determine   whether   the
'   given   address   is   legal   for   any   particular   subnetting   scheme.   If   the
'   address   is   valid,   it   will   return   the   address   itself,   otherwise   it   will
'   return   an   empty   (zero-length)   string.
'************************************************************************

Top

3 楼aohan（aohan）回复于 2005-05-22 00:46:58 得分 0 Private   Function   ValidateIPAddress(AddressToValidate   As   String)   As   String

          'Local   Variables...
          Dim   TempStr   As   String
          Dim   ReducedAddress   As   String
          Dim   SplitAddress()   As   String
          Dim   OctetIndex   As   Long
          Dim   OctetValue   As   Long

          'First   remove   all   non-decimal,   non-period   characters   from   the   address...
          For   OctetIndex   =   1   To   Len(AddressToValidate)
                  TempStr   =   Mid$(AddressToValidate,   OctetIndex,   1)
                  Select   Case   TempStr
                      Case   "0"   To   "9",   ".":   ReducedAddress   =   ReducedAddress   &   TempStr
                  End   Select
          Next

          'Split   the   octets   into   a   string   array   for   inspection...
          SplitAddress   =   Split(ReducedAddress,   ".")
          ReducedAddress   =   ""

          'If   there   are   not   exactly   4   octets   (0->3),   return   empty...
          If   UBound(SplitAddress())   <>   3   Then
                  ValidateIPAddress   =   ""
                  Exit   Function
          End   If

          'Verify   that   the   value   of   each   octet   is   between   0   and   255...
          For   OctetIndex   =   0   To   3
                  TempStr   =   SplitAddress(OctetIndex)
                  OctetValue   =   Val(TempStr)
                  If   Len(TempStr)   =   0   Or   OctetValue   <   0   Or   OctetValue   >   255   Then
                          ValidateIPAddress   =   ""
                          Exit   Function
                  End   If
                  ReducedAddress   =   ReducedAddress   &   Format$(OctetValue,   "##0")
                  If   OctetIndex   <   3   Then   ReducedAddress   =   ReducedAddress   &   "."
          Next

          'Return   the   validated   result...
          ValidateIPAddress   =   ReducedAddress

End   Function

'************************************************************************
'   HWAddressStrToByteArray()
'
'   This   routine   takes   a   hexadecimal   ethernet   NIC   address   in   string   format
'   and   converts   it   into   a   6-element   (0   to   5)   array   of   byte   values
'   representing   that   same   address.     This   routine   is   used   when   building
'   wake-on-lan   "Magic-Packets".
'************************************************************************
Private   Sub   HWAddressStrToByteArray(HexHWAddress   As   String,   _
                                                                          ByRef   HWAddressByteArray()   As   Byte)

          'Local   Variables...
          Dim   ByteIndex   As   Long

          'Clear   out   the   array   to   start...
          For   ByteIndex   =   0   To   5
                  HWAddressByteArray(ByteIndex)   =   0
          Next

          'Convert   each   hex   double-digit   to   a   byte   in   the   array...
          For   ByteIndex   =   1   To   11   Step   2
                  HWAddressByteArray((ByteIndex   -   1)   /   2)   =   _
                                                        Val("&H"   &   Mid$(HexHWAddress,   ByteIndex,   2))
          Next

End   Sub

'************************************************************************
'   IPSubnetAddressToBCastAddress()
'
'   This   routine   takes   an   IP   address   and   it's   associated   subnet   mask   and
'   returns   the   directed-broadcast   address   for   that   subnet.   If   either
'   parameter   is   invalid   the   local   broadcast   address   (255.255.255.255)
'   is   returned.
'************************************************************************
Private   Function   IPSubnetAddressToBroadcastAddress(IPSubnetAddress   As   String,   _
                                                                                                        IPSubnetMask   As   String)   _
                                                                                                        As   String

          'Local   Variables...
          Dim   IPStrArray()   As   String
          Dim   MaskStrArray()   As   String
          Dim   BCastAddressByte   As   Byte
          Dim   BCastAddress   As   String
          Dim   ByteIndex   As   Long

          'Check   for   valid   input...
          If   ValidateIPAddress(IPSubnetAddress)   =   ""   Or   _
                ValidateIPAddress(IPSubnetMask)   =   ""   Then
                  IPSubnetAddressToBroadcastAddress   =   "255.255.255.255"
                  Exit   Function
          End   If

          'Initialize   the   strings...
          BCastAddress   =   ""
          IPStrArray   =   Split(IPSubnetAddress,   ".")
          MaskStrArray   =   Split(IPSubnetMask,   ".")

          'Build   the   new   broadcast   address   byte-by-byte...
          For   ByteIndex   =   0   To   3

                  BCastAddressByte   =   Val(IPStrArray(ByteIndex))   Or   _
                                                        (Val(MaskStrArray(ByteIndex))   Xor   255)

                  BCastAddress   =   BCastAddress   &   CStr(BCastAddressByte)
                  If   ByteIndex   <   3   Then   BCastAddress   =   BCastAddress   &   "."

          Next

          'And   finally   return   it   to   the   calling   routine...
          IPSubnetAddressToBroadcastAddress   =   BCastAddress

End   Function
'窗体测试

Private   Sub   Command1_Click()
          Dim   WOL_WS   As   CMagicPacket
          Set   WOL_WS   =   New   CMagicPacket
          With   WOL_WS
                  .WinsockControl   =   Winsock1
                  .NICAddress   =   "0030f1983422"
                  .IPSubnetAddress   =   "192.168.0.1"   '¶Ô·½IP
                  .IPSubnetMask   =   "255.255.255.0"
                  .WakeUp
          End   With
          Set   WOL_WS   =   Nothing
End   Sub