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QueryPerformanceFrequency

  • Article

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
    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, this parameter can be to zero.

Return Values

Nonzero indicates that the installed hardware supports a high-resolution performance counter. Zero indicates that the installed hardware does not support a high-resolution performance counter.

Requirements

Runs on Versions Defined in Include Link to
Windows CE OS 2.0 and later Winbase.h    

Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

See Also

QueryPerformanceCounter

 Last updated on Tuesday, July 13, 2004

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