QueryPerformanceFrequency
The QueryPerformanceFrequency
function retrieves the frequency of the high-resolution performance counter, if
one exists.
BOOL QueryPerformanceFrequency(
|
LARGE_INTEGER *lpFrequency |
// address of
current frequency |
|
); |
|
Parameters
lpFrequency
Points 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
If the
installed hardware supports a high-resolution performance counter, the return
value is nonzero.
If the
installed hardware does not support a high-resolution performance counter, the
return value is zero.
See Also