首先,您应该在应用程序中包含清单,以确保它在管理员权限下运行。然后您应该使用API启用SE_BACKUP_NAME
权限。AdjustTokenPrivileges
然后我建议你使用FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE
标志作为sharedMode
. 现在您应该可以使用CreateFile
打开目录句柄并使用GetFileInformationByHandle
来获取BY_HANDLE_FILE_INFORMATION
.
更新:可能以下简单的演示程序可以帮助您
#include <windows.h>
#include <tchar.h>
int _tmain()
{
HANDLE hAccessToken = NULL;
HANDLE hFile = INVALID_HANDLE_VALUE;
__try {
LUID luidPrivilege;
DWORD dwErrorCode;
BY_HANDLE_FILE_INFORMATION fiFileInfo;
// -----------------------------------------------------
// first of all we need anable SE_BACKUP_NAME privilege
// -----------------------------------------------------
if (!OpenProcessToken (GetCurrentProcess(),
TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY,
&hAccessToken))
__leave;
if (LookupPrivilegeValue (NULL, SE_BACKUP_NAME, &luidPrivilege)) {
TOKEN_PRIVILEGES tpPrivileges;
tpPrivileges.PrivilegeCount = 1;
tpPrivileges.Privileges[0].Luid = luidPrivilege;
tpPrivileges.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
AdjustTokenPrivileges (hAccessToken, FALSE, &tpPrivileges,
0, NULL, NULL);
if ((dwErrorCode = GetLastError ()) != ERROR_SUCCESS)
__leave;
}
else
__leave;
// -----------------------------------------------------
// now one can open directory and get
// -----------------------------------------------------
hFile = CreateFile (TEXT("C:\\"),
0, //GENERIC_READ,
0, //FILE_SHARE_READ, //FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS,
NULL);
if (hFile == INVALID_HANDLE_VALUE)
__leave;
if (!GetFileInformationByHandle (hFile, &fiFileInfo))
__leave;
_tprintf(TEXT("VolumeSerialNumber: 0x%08X\n"), fiFileInfo.dwVolumeSerialNumber);
_tprintf(TEXT("FileIndex: 0x%08X%08X\n"), fiFileInfo.nFileIndexHigh, fiFileInfo.nFileIndexLow);
}
__finally {
if (hFile != INVALID_HANDLE_VALUE)
CloseHandle (hFile);
if (hAccessToken != NULL)
CloseHandle (hAccessToken);
}
return 0;
}
该程序打开C:\
目录并显示卷序列号和文件索引,它们标识了 NTFS 上的目录。为了使程序更短,我删除了所有错误消息(参见__leave
语句)。就像我之前已经提到的那样,您应该将requireAdministrator
其用作“UAC 执行级别”(请参阅链接器设置的“清单文件”部分)。上面的代码已经过测试,它对我有用。您可以在 C# 中重现相同的代码。