Al 26/02/11 19:43, En/na Marco van de Voort ha escrit: > > (1) this discussion is about a gettickcount implementation, but I'm not > entirely sure why this is needed so badly.
I use it extensively to keep track of time and I can currently live with the workaround DWord(Trunc(Now * 24 * 60 * 60 * 1000)) but I have to put some safeguards since that is not monotonic. Under windows I can be sure that the difference between GetTickCount and PreviousGetTickCount will be positive (at least if I don't need to time events more than 24 days apart), under Linux I have no such guarantee. So if, e.g. I have function lapsed(origin:dword):dword; begin result:=GetTickCount-origin; end; under windows I can do, eg if lapsed(starttime)>5000 then ... with no worries, while under linux I need (to avoid waiting forever in case someone touches the system clock) if (lapsed(starttime)>5000) or (lapsed(starttime)<0) then ... which, apart from being quite inelegant, could fire well before 5 seconds have passed. Bye -- Luca Olivetti Wetron Automatización S.A. http://www.wetron.es/ Tel. +34 93 5883004 (Ext.133) Fax +34 93 5883007 -- _______________________________________________ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus