如何得到系统的开关机时间(在WIN2K下)???

Question

可以看看这样行不行. 
看系统进程(如Service等)的启动时间. 
用GetProcessTimes API

Answer 1

#include <windows.h>
#include <stdio.h>#define SystemTimeInformation 3typedef struct _SYSTEM_TIME_INFORMATION
{
LARGE_INTEGER liKeBootTime;
LARGE_INTEGER liKeSystemTime;
LARGE_INTEGER liExpTimeZoneBias;
ULONG uCurrentTimeZoneId;
DWORD dwReserved;
} SYSTEM_TIME_INFORMATION;
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);
}