Moving a text with dxCreateText

[Et-win]

Hello,

I want to create a moving text with dxCreateText like this: http://www.ukauctionhelp.co.uk/marquee.php

The text has so fit in an image, for example, lets say this one: http://www.q-lite.nl/wp-content/gallery ... roda_0.jpg

Now I want to move (For example) the "GOAL GOAL" text from left to right but has to stay in the board.

I already tested alot of things but without success.

How?

Thanks.

EDIT: Can also someone explain me:

If I create a text with dxDrawText with a size X = 100, on pX = 0, but then set the position to 100, why I have to add the position to the size X? Because if I make the position bigger, some of the text will be cut off.

[Et-win]

Thanks for any answers on both things.