Time based applicatioon

qmon2002 · 02-05-2003, 09:24 AM

Hello all,

First, I would like to say that I'm new to programming and thank you for the help in advance.

I'm currently trying to develop and application in C++ that should start and play a song, for example, every few hours. What I want to know how to make to the application check for time, and based on the value received from the system to start or not.

Pointing to the right direction is much appreciated.

Thanks

GtkUser · 02-05-2003, 10:05 AM

You are looking for libraries like <sys/time.h>, but where you get the information I don't know. It would probably be better suited for a scripting langauge like bash.

GtkUser · 02-05-2003, 10:11 AM

My computer gets time from a Time Server at the local University. In that case a langauge like Java probably makes getting that information a lot easier than C++. You can probably to use libraries like <sys/time.h> but those are definately platform specific and not part of standard C or standard C++. They are libraries of the OS.

GtkUser · 02-05-2003, 10:31 AM

There is also a <time.h> header. I have to do stuff this afternood but I can maybe help later if nobody else does. If you just want to play music as certain times though and nothing else than for sure a shell script would be better.

GtkUser · 02-05-2003, 10:43 AM

Is the application a daemon?

qmon2002 · 02-05-2003, 11:34 AM

Thanks GTKUser for your help,

Well, I don't want to use a script to do such task.
I just want the the application to keep checking for time at a certain intervals during the 24 hours span, and when the time set by the user is equal to the time is on the system, a reminder is displayed.

Thanks again

qmon2002 · 02-05-2003, 11:35 AM

It is going to be a KDE applet.

GtkUser · 02-05-2003, 11:48 AM

Oh okay, so you are using QT and the program is a daemon. QT has specific libraries for dealing with system time. I have a book on QT with a chapter called Interfacing with the operating system. And one of the sections talks about working with date and time values.

Just reading the first few words:

Date and time values are inherently hard to make portable. Therefore, it's a good idea to use the classes provided by QT when you work with this kind of data.

Three QT classes are in this area: QDate, QTime, and QDateTime. ...

Look up those class prototypes.