On Sat, Jun 30, 2018 at 3:57 PM, Marcos Douglas B. Santos <m...@delfire.net> wrote: > Hi, > > I need to build a daemon app on Windows. It will need a timer to > performe some tasks. This timer could be big among 15 min, 30 min, 2 > hours, etc. > > I thought that I can use TTimer but I've always heard that it's not > possible because some problems related with "NoGUI" stuff. > > I've found a thread[1] which talks about that but they haven't > provided a real solution, at least for Windows. > > My question is: Nowadays, can I use TTimer with no restrictions in a > daemon application on Windows? If not, which could be a possible > solution? >
If all your service does is wait for the timer you should instead use a scheduled task. Anyway - does TTimer use the WM_TIMER message? That is the type tied to the GUI. Even if you need to use WM_TIMER for some reason you can, as services should be run in "session 0" and should have access to a GUI. The latter is, I think, a compatibility option you can enable. If you are not opposed to OS-level primitives you should use waitable timers (https://docs.microsoft.com/en-us/windows/desktop/sync/using-waitable-timer-objects). Using waitable timers you can also wake the computer from sleep. Cheers, R0b0t1 _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
