>Hi Denis,
>
>>In parm->p[0].val i see ev_real part... but it is real value... How can I get a day,year and months from this value ?
>
>From the VFP help file:
>
>1. The date is represented as a double-precision floating-point Julian day number calculated using Algorithm 199 from Collected Algorithms of the ACM.
>
>You don't have to know the algorithm, just pass a known date and use the date and corresponding number to determine the actual date. I haven't checked it, but SYS(11) and SYS(11) might use the same algorithm.
>
>Christof

Hi Christof !
It is necessary to write a part of the application connected with checks of the serial numbers of the application on C in FLL. If the task was to write on VFP, questions would not be. But unfortunately applications it is possible Refox.
What it the algorithm??? Where I can read about it ?? Whether there are functions which have allowed at once to receive month, number and year from ev_real component ??
Thanks again.
Denis.