BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  getting a component to call a function without using a TTime          BorlandTalk.com Forum Index -> C++ Builder (VCL Components Development) View previous topic :: View next topic   Author Message gary Guest Posted: Tue Apr 26, 2005 12:24 pm    Post subject: getting a component to call a function without using a TTime If I want my component to perform a task, say, checking if there is data in the inbuffer, on a regular basis, how would I do this without resorting to a TTimer. In other words, is there a more elegant way of doing things. Any ideas will be much appreciated. Back to top JD Guest Posted: Tue Apr 26, 2005 12:32 pm    Post subject: Re: getting a component to call a function without using a T "gary" <user (AT) home (DOT) com> wrote: Quote: how would I do this without resorting to a TTimer. Use a thread. ~ JD Back to top Remy Lebeau (TeamB) Guest Posted: Tue Apr 26, 2005 5:09 pm    Post subject: Re: getting a component to call a function without using a T "gary" <user (AT) home (DOT) com> wrote Quote: If I want my component to perform a task, say, checking if there is data in the inbuffer, on a regular basis, how would I do this without resorting to a TTimer. In other words, is there a more elegant way of doing things. You don't need to use TTimer if you want a timer. You can call the Win32 API SetTimer() function directly, assuming your component has its own HWND to receive the WM_TIMER message with. Alternatively, there is timeSetEvent(), which is a threaded multimedia timer. Gambit Back to top Rob Guest Posted: Wed Apr 27, 2005 12:17 pm    Post subject: Re: getting a component to call a function without using a T gary wrote: Quote: If I want my component to perform a task, say, checking if there is data in the inbuffer, on a regular basis, how would I do this without resorting to a TTimer. In other words, is there a more elegant way of doing things. Most obvious way is to create a worker thread that does the task, calls Sleep() for some specified number of milliseconds. If the task involves writing data that the component needs, it is necessary to synchronise access to that data. It is usually necessary to have some polite way of telling the thread to terminate. 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