# Function Reference

# _WinAPI_QueryPerformanceFrequency

Retrieves the frequency of the high-resolution performance counter

#include <WinAPISys.au3>
_WinAPI_QueryPerformanceFrequency ( )

## Return Value

Success: | The current performance-counter frequency, in counts per second.
Failure: | Sets the @error flag to non-zero, call _WinAPI_GetLastError() to get extended error information.

## See Also

Search QueryPerformanceFrequency in MSDN Library.