Log time needed for process

Hi,

Using Borland cpp Builder 4.x

I want to log the time needed for a certain process.

I tried :

SYSTEMTIME Time ;
GetSystemTime(&Time) ;
DWORD Seconds = (Time.wSecond + (Time.wMinute * 60) + (Time.wHour * 60 * 60))

Further down the code, after the process is finished I do this again and see what the difference is.

The question.
Is there an alternative and maybe faster way ??
Faster in the sense : more accurate ?

Is the above mentioned method effecient enough or is it system dependant and time consoming to get that time ??

Input is welcome.

sneeuw