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我找實例和文檔,但我還是不明白這一點...使用的RegQueryValueEx和HKEY_PERFORMANCE_COUNTER獲取「磁盤字節/秒%
如何使用RegQueryValueEx
(不的PdhXxx函數)來查詢像Disk Bytes/sec
我已經試過如下:?
DWORD type;
static union { TCHAR Data[32 * 1024]; PERF_DATA_BLOCK Perf; } perf;//Stack buffer
DWORD cbData = sizeof(perf);
LSTATUS s = RegQueryValueEx(HKEY_PERFORMANCE_DATA,
_T("PhysicalDisk"), NULL, &type, (LPBYTE)&perf, &cbData);
PPERF_OBJECT_TYPE pObjType =
(PPERF_OBJECT_TYPE)((BYTE*)&perf + perf.Perf.HeaderLength);
,但它只是返回一個頭,沒有數據:(
啊,這是有道理的,謝謝! :) – Mehrdad 2011-03-28 21:03:52