局域网方面的问题，高手帮看看。。什么问题？

[kekeke]

这是用来取得局域网内所有机器的地址和名字的。

是codetools.com上的一段程序，好象有问题，NetResource->lpRemoteName 为什么都是空的？

CString strTemp;
struct hostent *host;
struct in_addr *ptr; // To retrieve the IP Address

DWORD dwScope = RESOURCE_CONTEXT;
NETRESOURCE *NetResource = NULL;
HANDLE hEnum;
WNetOpenEnum( dwScope, NULL, NULL, NULL, &hEnum );

WSADATA wsaData;
WSAStartup(MAKEWORD(1,1),&wsaData);

if ( hEnum )
{
DWORD Count = 0xFFFFFFFF;
DWORD BufferSize = 2048;
LPVOID Buffer = new char[2048];
WNetEnumResource( hEnum, &Count, Buffer, &BufferSize );
NetResource = (NETRESOURCE*)Buffer;

char szHostName[200];

for ( unsigned int i = 0; i < BufferSize/sizeof(NETRESOURCE); i++, NetResource++ )
{
if ( NetResource->dwUsage == RESOURCEUSAGE_CONTAINER && NetResource->dwType == RESOURCETYPE_ANY ) {
if ( NetResource->lpRemoteName )
{
CString strFullName = NetResource->lpRemoteName;
if ( 0 == strFullName.Left(2).Compare("\\\\") ) strFullName = strFullName.Right(strFullName.GetLength()-2);

gethostname( szHostName, strlen( szHostName ) );
host = gethostbyname(strFullName);
if(host == NULL) continue;
ptr = (struct in_addr *) host->h_addr_list[0];

// Eg. 211.40.35.76 split up like this.
int a = ptr->S_un.S_un_b.s_b1; // 211
int b = ptr->S_un.S_un_b.s_b2; // 40
int c = ptr->S_un.S_un_b.s_b3; // 35
int d = ptr->S_un.S_un_b.s_b4; // 76

strTemp.Format("%s --> %d.%d.%d.%d",strFullName,a,b,c,d);
AfxMessageBox(strTemp);
}
}
}
delete Buffer;
WNetCloseEnum( hEnum );
}

WSACleanup();

[kekeke]

难道没人？