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QueryPerformanceFrequency (Windows CE 5.0)

Windows CE 5.0
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This function retrieves the frequency of the high-resolution performance counter if one is provided by the OEM.

BOOL QueryPerformanceFrequency(
  LARGE_INTEGER* lpFrequency 
);

Parameters

lpFrequency
[out] Pointer to a variable that the function sets, in counts per second, to the current performance-counter frequency.

If the installed hardware does not support a high-resolution performance counter, the value passed back through this pointer can be zero.

Return Values

If the function succeeds, it returns TRUE to indicate that a performance frequency value was successfully filled in.

If the function fails, it returns FALSE.

Remarks

If the hardware does not support a high frequency counter, QueryPerformanceFrequency will return 1000 because the API defaults to a milliseconds GetTickCount implementation.

Requirements

OS Versions: Windows CE 2.0 and later.
Header: Winbase.h.
Link Library: Coredll.lib.

See Also

Time Functions | QueryPerformanceCounter | Supporting High-Resolution Timers | Timer Driver Reference


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