#include <stdio.h>
#include <windows.h>
#include <tchar.h>
#include <winperf.h>
#include <pdh.h>

#define	CHECK_STAT(func, end) \
do { \
	PDH_STATUS __zz_stat; \
	__zz_stat = (func); \
	if(__zz_stat != ERROR_SUCCESS) { \
		_ftprintf(stderr, "error! ret=0x%x in line %d\n", __zz_stat, __LINE__); \
		goto end; \
	} \
} while(0)

int main()
{
	PDH_BROWSE_DLG_CONFIG brwConf;
	TCHAR cntPath[1024];
	HQUERY hQuery;
	HCOUNTER hCounter;
	PDH_FMT_COUNTERVALUE fmtVal;

	_tmemset(&brwConf, 0, sizeof(brwConf));
	brwConf.bIncludeInstanceIndex = TRUE;
	brwConf.bSingleCounterPerAdd = FALSE;
	brwConf.bSingleCounterPerDialog = TRUE;
	brwConf.bLocalCountersOnly = FALSE;
	brwConf.bWildCardInstances = FALSE;
	brwConf.bHideDetailBox = FALSE;
	brwConf.hWndOwner = NULL;
	brwConf.szReturnPathBuffer = cntPath;
	brwConf.cchReturnPathLength = sizeof(cntPath)-1;
	brwConf.pCallBack = NULL;
	brwConf.dwDefaultDetailLevel = PERF_DETAIL_WIZARD;
	brwConf.szDialogBoxCaption = "Select Counter";
	if(PdhBrowseCounters(&brwConf) != ERROR_SUCCESS) {
		return 0;
	}
	_tprintf("%s\n", cntPath);
	if(PdhOpenQuery(NULL, 0, &hQuery) != ERROR_SUCCESS) {
		_ftprintf(stderr, "Something is wrong...\n");
		return 2;
	}
	CHECK_STAT(PdhAddCounter(hQuery, cntPath, 0, &hCounter), end);
	while(1) {
		CHECK_STAT(PdhCollectQueryData(hQuery), end);
		CHECK_STAT(PdhGetFormattedCounterValue(hCounter, PDH_FMT_DOUBLE, NULL, &fmtVal), end);
		_tprintf("%s = %f\n", cntPath, fmtVal.doubleValue);
		Sleep(1000);
	}

end:
	PdhCloseQuery(hQuery);
	return 0;
}