// GetProcessCpu.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <windows.h>
#include <stdio.h>

#include "pdh.h"
#pragma comment(lib, "Pdh.lib")

void main(void)
{
	PDH_STATUS status = ERROR_SUCCESS;
	HQUERY hQuery = NULL;
	HCOUNTER hCounter = NULL;
	HANDLE hEvent = NULL;
	DWORD dwWaitResult = 0;
	PDH_FMT_COUNTERVALUE DisplayValue;
	DWORD dwCounterType = 0;
	status = PdhOpenQuery(NULL, 0, &hQuery);
	if (ERROR_SUCCESS == status)
	{
		status = PdhAddCounter(hQuery, "\\Processor(0)\\% Processor Time", 0, &hCounter);
		if (ERROR_SUCCESS == status)
		{
			PdhCollectQueryData(hQuery);
			while(true)
			{
				PdhCollectQueryData(hQuery);
				status = PdhGetFormattedCounterValue(hCounter, PDH_FMT_DOUBLE, &dwCounterType, &DisplayValue);
				printf("CPUÕ¼ÓÃ %.2f\n", DisplayValue.doubleValue);
				Sleep(1000);
			}
		}
		PdhCloseQuery(hQuery);
	}
}