a program which rang a bell at certain at certain moments

[bluesteel]

I was asked to make a program which rang a bell at certain at certain moments. The one way i can think of making it is by using a loop, but i should try to avoid using it and i don't have any idea. I thought of looping, and when the time matched with the specified one, it rang the bell. I do not have it clear how to make it ring. They told me that i had to think of how to develop the program and they would think of how to make the bell ring when i returned 1 or 0. This is the thing: if main() returns any number, the program finishes...!
Any ideas...??? Help is really much appreciated

[RedSon]

Using a good, clear thread title is important. The reasons for this are:

* We want this site to grow, many of our new members find the site using a search engine, by using a good thread title you will help us grow the site by helping us get better search engine rankings.
* Using a good title will benefit you too because other members of the forum will be less likely to skip over your thread and it allows the experts to quickly scan through the forum for questions they know the answer to.
* If the threads are well titled it allows other users to easily see if there have been any threads that could be relevant to their own current problem.
* It is in everybody's best interests to post properly titled threads as the more time the moderators have to spend on managing titles the less time they have available to give answers to the questions posed.

-MODERATOR

[Banfa]

What platform and operating system are you using?

[JosAH]

What platform and operating system are you using?

And maybe even more important: what bell?

kind regards,

Jos ;-)

[bluesteel]

And maybe even more important: what bell?

kind regards,

Jos ;-)

I was told to make a program give a device either zero or one at appropiate moments. The bell is supposed to ring when it's one (don't worry about how to make the bell react, it is out of my responsibility). It should work under WXP

[Banfa]

If it needs to work under Windows XP then just create a program with a Window (can be invisible if you do not want to be able to see it).

Then set a timer going at an appropriate frequency using SetTimer.

Whenever the timer goes off get the current time using GetSystemTime, compare that to when you wish to have the bell go off and if it is the right time output your 1.

[bluesteel]

If it needs to work under Windows XP then just create a program with a Window (can be invisible if you do not want to be able to see it).

Then set a timer going at an appropriate frequency using SetTimer.

Whenever the timer goes off get the current time using GetSystemTime, compare that to when you wish to have the bell go off and if it is the right time output your 1.

That's the point. How do i give a device an output?

[Banfa]

That's the point. How do i give a device an output?

Depends what the device is and how it is connected to the computer.

[JosAH]

Depends what the device is and how it is connected to the computer.

Also see my reply #4 again ;-)

kind regards,

Jos

[bluesteel]

And maybe even more important: what bell?

kind regards,

Jos ;-)

The bell is not what i should worry about, it should be conected to the parallel port, then i'll tell the other people which cable(s) will be returning the 1.
I should make a program which does everything, i mean that i should have to open the program and the program would do everything for me. That means not needing to use windows xp scheduler, at least not manually. Thanks for your help. Please ask for clarification if there's something i forgot to write.

[JosAH]

The bell is not what i should worry about, it should be conected to the parallel port, then i'll tell the other people which cable(s) will be returning the 1.
I should make a program which does everything, i mean that i should have to open the program and the program would do everything for me. That means not needing to use windows xp scheduler, at least not manually. Thanks for your help. Please ask for clarification if there's something i forgot to write.

Well, if that is the point instead, reread Banfa's reply #6.

kind regards,

Jos

[Banfa]

The bell is not what i should worry about, it should be conected to the parallel port, then i'll tell the other people which cable(s) will be returning the 1.
I should make a program which does everything, i mean that i should have to open the program and the program would do everything for me. That means not needing to use windows xp scheduler, at least not manually. Thanks for your help. Please ask for clarification if there's something i forgot to write.

You do realise that it has taken 10 messages in this thread for you to even get to the point of mentioning the parallel port. This would have moved along more quickly if you had mentioned this in the first place instead of making us try and tease the information out of you.

I suggest that you read this which has much to say on the subject of using the parallel port as a control port.

[bluesteel]

You do realise that it has taken 10 messages in this thread for you to even get to the point of mentioning the parallel port. This would have moved along more quickly if you had mentioned this in the first place instead of making us try and tease the information out of you.

I suggest that you read [url=http://www.epanorama.net/circuits/parallel_output.html#windowsprogramming]this[url] which has much to say on the subject of using the parallel port as a control port.

Thanks! I guess this website will be enough!