NT检测用户权限?

[greentape]

如何用vc编程知道NT4中当前登陆用户是否具有
本机管理员权限?

[xenogear]

用程序试着做一些管理员才可以做的工作, 看结果就知道权限了

[netmare]

//得到某进程的令牌
BOOL OpenProcessToken(
HANDLE ProcessHandle, // handle to process
DWORD DesiredAccess, // desired access to process
PHANDLE TokenHandle // pointer to handle of open access token
);
//得到令牌信息
BOOL GetTokenInformation(
HANDLE TokenHandle, // handle of access token
TOKEN_INFORMATION_CLASS TokenInformationClass,
// type of information to retrieve
LPVOID TokenInformation, // address of retrieved information
DWORD TokenInformationLength,
// size of information buffer
PDWORD ReturnLength // address of required buffer size
);
//令牌特权信息结构
typedef struct _TOKEN_PRIVILEGES { // tp
DWORD PrivilegeCount;
LUID_AND_ATTRIBUTES Privileges[ANYSIZE_ARRAY];
} TOKEN_PRIVILEGES;

Privileges
Specifies an array of LUID_AND_ATTRIBUTES structures. Each structure contains the LUID and attributes of a privilege. The attributes of a privilege can be a combination of the following values: Attribute Description
SE_PRIVILEGE_ENABLED_BY_DEFAULT
The privilege is enabled by default.
SE_PRIVILEGE_ENABLED
The privilege is enabled.
SE_PRIVILEGE_USED_FOR_ACCESS
The privilege was used to gain access to an object or service. This flag is used to identify the relevant privileges in a set passed by a client application that may contain unnecessary privileges.

//由特权的LUID得到其字符形式的名字
BOOL LookupPrivilegeName(
LPCTSTR lpSystemName,
// address of string specifying the system
PLUID lpLuid, // address of locally unique identifier
LPTSTR lpName, // address of string specifying the privilege
LPDWORD cbName // address of size of string for displayable name
);

例如
#include <winnt.h>
...
OpenProcessToken(GetCurrentProcess(),TOKEN_READ and TOKEN_QUERY,&hToken);
TOKEN_PRIVILEGES tkp;
WORD cb;
GetTokenInformation(hToken,TokenPrivileges,&tkp,sizeof(tkp),&cb);
char szName[256];
for(DWORD i=0;i<tkp.PrivilegeCount;i++)
{
LookupPrivilegeName(NULL,&tkp.Privileges[i].Luid,szName,&cb);
if(!strcmp(szName,"SeShutdownPrivilege"))
//有关机的特权,是系统管理员
...
}
具体细节可参考msdn