How do I stop a function

So that is working for you? Motion is just placement plus time.

So is it taking shape for you?

I wish. kglad, david stiller, and _urami have all been here longer than I. (And they are all a lot smarter than me.)

But thanks for noticing! :)

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Let's think about centering a 5 x 3 index card on an 11 by 8 1/2 piece of paper. (I've done the sizes in that order so that x/across is first and y/updown is second just like x,y in flash and if you aren't from the US those dimensions may seem totally random, but here they are common sizes that paper comes in.). I don't know where your registration points are, but since Flash loads dynamic content with the registration point in the upper left corner we'll go with that.

Sof first we want to find the center of the bigger sheet (or the stage in Flash) In this case it is 11 accross so we divide by two and that puts the center at 5.5. To get how big the stage is across you can ask for the stage width:

var xCenter:Number=stage.StageWidth/2

(I think that is the correct way in AS3, I knew this off the top of my head in AS2, but it changed a bit in AS3.) I bet you can figure out you to get yCenter...

var myCard.x=xCenter;

Now if I put the upper left corner of my index card there it still isn't centered. So I need to move my index card up and to the left, but by how much?

It needs to go half the width of the card to the left. So if the card is 5 we need to slide it 2.5 to the left. So in our case 11/2-5/2=3. So the left edge of the index card would go 3 from the left edge of the note paper. So I can do something like this:

myCard.x=xCenter-myCard.width/2

Using that w from before. And the trick for the y direction is exactly the same, but with the height of the clip. Of course if you have changing dimensions of your clip then you need to work on some other solution but the same idea should work out.

Yup. Just like you had to put together a complex string of various commands in your showSlides() function definition you will need to put together a string of things that will happen in a stopSlides() function.

You can't just try stop.slideShow() because that doesn't make any sense to Flash. You have to make your own function that tells it what to do. Computers (for the most part) do what we tell them not what we want.

So what should happen when you click the stop button. Should the whole screen go dark? Should the show just pause on the slide that is currently showing? Should it go back to the beginning? Those are just three possible things and there countless other things that you could want. How would flash know what to do?

If you have a timer then you certainly will want to stop the timer. You say it is only for the photo transitions, but that seems to be the thing you want to stop, right. So that is really at the heart of what you need to deal with.

You might want to change the visibilty of the current slide or not? What if they start the show again? Should it remember where it was? Should it go back to the beginning? These are all things you would put in your new function.

There is no easy way out -- well the easy way out is just to not have a exit button! Programming is all about planning what you want to happen and making it happen. There isn't anything Flash can do to take over that responsibility for you.

Because that is how functions work. They are designed to be called like so:

myFunction();

and then to run their code. Generally they have some amount of code in the function declaration and it runs within a few milliseconds and it is done. So really there generally isn't anything to stop. As a generally rule you can't "stop" a function. Do you have some code in your function that makes it continually execute? In that case you have something happening over time and you want to stop it, not the "function" per se. You really haven't explained what you are trying to do.

I think perhaps you need a second function? Perhaps stopSlides() or something like that? Without know what is in your showSlides() function it is hard to know what you need to do.

Try something like this (in stead of using EnterFrame you might start/stop a Timer):