[转帖]Windows 2000系统中如何获取系统的启动时间
| // timeboot.cpp (Windows NT/2000)
//
// This example will show how you can get the time
// when your system was booted.
//
// (c)1999 Ashot Oganesyan K, SmartLine, Inc
// mailto:ashot@aha.ru, http://www.protect-me.com, http://www.codepile.com
#include
#include
#define SystemTimeInformation 3
typedef struct _SYSTEM_TIME_INFORMATION
{
LARGE_INTEGER liKeBootTime;
LARGE_INTEGER liKeSystemTime;
LARGE_INTEGER liExpTimeZoneBias;
ULONG uCurrentTimeZoneId;
DWORD dwReserved;
} SYSTEM_TIME_INFORMATION;
// ntdll!NtQuerySystemInformation (NT specific!)
//
// The function copies the system information of the
// specified type into a buffer
//
// NTSYSAPI
// NTSTATUS
// NTAPI
// NtQuerySystemInformation(
// IN UINT SystemInformationClass, // information type
// OUT PVOID SystemInformation, // pointer to buffer
// IN ULONG SystemInformationLength, // buffer size in bytes
// OUT PULONG ReturnLength OPTIONAL // pointer to a 32-bit
// // variable that receives
// // the number of bytes
// // written to the buffer
// );
typedef LONG (WINAPI *PROCNTQSI)(UINT,PVOID,ULONG,PULONG);
PROCNTQSI NtQuerySystemInformation;
void main(void)
{
SYSTEM_TIME_INFORMATION Sti;
LONG status;
FILETIME ftSystemBoot;
SYSTEMTIME stSystemBoot;
NtQuerySystemInformation = (PROCNTQSI)GetProcAddress(
GetModuleHandle("ntdll"),
"NtQuerySystemInformation"
);
if (!NtQuerySystemInformation)
return;
status = NtQuerySystemInformation(SystemTimeInformation,&Sti,sizeof(Sti),0);
if (status!=NO_ERROR)
return;
ftSystemBoot = *(FILETIME *)&(Sti.liKeBootTime);
FileTimeToLocalFileTime(&ftSystemBoot,&ftSystemBoot);
FileTimeToSystemTime(&ftSystemBoot,&stSystemBoot);
printf("Date: %02d-%02d-%04d\nTime: %02d:%02d:%02d\n",
stSystemBoot.wMonth,stSystemBoot.wDay,stSystemBoot.wYear,
stSystemBoot.wHour,stSystemBoot.wMinute,stSystemBoot.wSecond);
} |
