www.pudn.com > NetIO.rar > cpuInfo.h

#include  
#include  
#include  
 
#define SystemBasicInformation       0 
#define SystemPerformanceInformation 2 
#define SystemTimeInformation        3 
 
#define Li2Double(x) ((double)((x).HighPart) * 4.294967296E9 + (double)((x).LowPart)) 
 
typedef struct 
{ 
    DWORD   dwUnknown1; 
    ULONG   uKeMaximumIncrement; 
    ULONG   uPageSize; 
    ULONG   uMmNumberOfPhysicalPages; 
    ULONG   uMmLowestPhysicalPage; 
    ULONG   uMmHighestPhysicalPage; 
    ULONG   uAllocationGranularity; 
    PVOID   pLowestUserAddress; 
    PVOID   pMmHighestUserAddress; 
    ULONG   uKeActiveProcessors; 
    BYTE    bKeNumberProcessors; 
    BYTE    bUnknown2; 
    WORD    wUnknown3; 
} SYSTEM_BASIC_INFORMATION; 
 
typedef struct 
{ 
    LARGE_INTEGER   liIdleTime; 
    DWORD           dwSpare[76]; 
} SYSTEM_PERFORMANCE_INFORMATION; 
 
typedef struct 
{ 
    LARGE_INTEGER liKeBootTime; 
    LARGE_INTEGER liKeSystemTime; 
    LARGE_INTEGER liExpTimeZoneBias; 
    ULONG         uCurrentTimeZoneId; 
    DWORD         dwReserved; 
} SYSTEM_TIME_INFORMATION; 
 
 
typedef LONG (WINAPI *PROCNTQSI)(UINT,PVOID,ULONG,PULONG); 
 
UINT getCpuUsage();