在WIN关闭时，往往计算机会提示有哪些计算机与你的电脑连接.

[every]

那么如何通过程序知道有哪些计算机与自己的电脑连接？

[strip]

NetSessionEnum

msdn里面有一个sample：
#ifndef UNICODE
#define UNICODE
#endif

#include <stdio.h>
#include <assert.h>
#include <windows.h>
#include <lm.h>

int wmain(int argc, wchar_t *argv[])
{
LPSESSION_INFO_10 pBuf = NULL;
LPSESSION_INFO_10 pTmpBuf;
DWORD dwLevel = 10;
DWORD dwPrefMaxLen = -1;
DWORD dwEntriesRead = 0;
DWORD dwTotalEntries = 0;
DWORD dwResumeHandle = 0;
DWORD i;
DWORD dwTotalCount = 0;
LPTSTR pszServerName = NULL;
LPTSTR pszClientName = NULL;
LPTSTR pszUserName = NULL;
NET_API_STATUS nStatus;
//
// Check command line arguments.
//
if (argc > 4)
{
wprintf(L"Usage: %s [\\\\ServerName] [\\\\ClientName] [UserName]\n", argv[0]);
exit(1);
}

if (argc >= 2)
pszServerName = argv[1];

if (argc >= 3)
pszClientName = argv[2];

if (argc == 4)
pszUserName = argv[3];
//
// Call the NetSessionEnum function, specifying level 10.
//
do // begin do
{
nStatus = NetSessionEnum(pszServerName,
pszClientName,
pszUserName,
dwLevel,
(LPBYTE*)&pBuf,
dwPrefMaxLen,
&dwEntriesRead,
&dwTotalEntries,
&dwResumeHandle);
//
// If the call succeeds,
//
if ((nStatus == NERR_Success) || (nStatus == ERROR_MORE_DATA))
{
if ((pTmpBuf = pBuf) != NULL)
{
//
// Loop through the entries.
//
for (i = 0; (i < dwEntriesRead); i++)
{
assert(pTmpBuf != NULL);

if (pTmpBuf == NULL)
{
fprintf(stderr, "An access violation has occurred\n");
break;
}
//
// Print the retrieved data.
//
wprintf(L"\n\tClient: %s\n", pTmpBuf->sesi10_cname);
wprintf(L"\tUser: %s\n", pTmpBuf->sesi10_username);
printf("\tActive: %d\n", pTmpBuf->sesi10_time);
printf("\tIdle: %d\n", pTmpBuf->sesi10_idle_time);

pTmpBuf++;
dwTotalCount++;
}
}
}
//
// Otherwise, indicate a system error.
//
else
fprintf(stderr, "A system error has occurred: %d\n", nStatus);
//
// Free the allocated memory.
//
if (pBuf != NULL)
{
NetApiBufferFree(pBuf);
pBuf = NULL;
}
}
//
// Continue to call NetSessionEnum while
// there are more entries.
//
while (nStatus == ERROR_MORE_DATA); // end do

// Check again for an allocated buffer.
//
if (pBuf != NULL)
NetApiBufferFree(pBuf);
//
// Print the final count of sessions enumerated.
//
fprintf(stderr, "\nTotal of %d entries enumerated\n", dwTotalCount);

return 0;
}

[every]

strip(阿飞):

当我调试出现以下错误:
Configuration: netsessionenum - Win32 Debug--------------------
Compiling...
netsessionenum.cpp
Linking...

还有请问 LPSESSION_INFO_10 是什么类型???
netsessionenum.obj : error LNK2001: unresolved external symbol _NetApiBufferFree@4
netsessionenum.obj : error LNK2001: unresolved external symbol _NetSessionEnum@36
Debug/netsessionenum.exe : fatal error LNK1120: 2 unresolved externals
Error executing link.exe.

netsessionenum.exe - 3 error(s), 0 warning(s)

[NowCan]

代码少一句
#include <stdio.h>
#include <assert.h>
#include <windows.h>
#include <lm.h>

#pragma comment(lib,"netapi32.lib")

另外，这个是NT下得程序，98下编译都不能过。

[every]

难道98下就不能通过程序知道有哪些计算机与自己的电脑连接吗?

[heartliubin]

连接，连接

[strip]

不会告诉你怎么做，还要帮你在所有平台上调试通过吧？

上面的代码我没有动过，原封不动的来自msdn :)


仔细看看msdn吧
Windows NT/2000 or later: Requires Windows NT 3.1 or later.
Windows 95/98/Me: Requires Windows 95 or later.
Header: Declared in Lmshare.h (Windows NT/2000) or Svrapi.h (Windows 95/98); include Lm.h (Windows NT/2000).
Library: Use Netapi32.lib (Windows NT/2000) or Svrapi.lib (Windows 95/98).