How to create simple event driven app?

[PopMilo]

I have seen a lot of code in rebol, and i seem to get the parts, but like if some connecting idea is missing ...

I made some very nice scripts in few lines which really do exectly what they should, and are great, but when I tried to make a simple graphic editor I was stucked...

I remember my first programming effort was drawing program which basicly looked like this:

loop: wait for keypress
        draw something on screen depending on what key was pressed
        goto loop

Now on rebol I know how to do something when something is pressed (feel stuff and such) but... but Im not quite clear on where exectly to put it...

So if someone could give me an example of something like this written in rebol...:

loop: wait for keypress
        if something usefull is pressed then do what you are supposed to do (draw on surface, move cursor, change color....)
       goto loop or whatever

Thank you very much in advance!

Rebol is a beauty and its getting better every week....

[Graham]

Rebol.org is your friend

[url]http://www.rebol.org/cgi-bin/cgiwrap/rebol/view-script.r?script=paint.r&sid=cnin556qq[/url]

[PopMilo]

Ok. Ill look at those scripts but....

paint.r is little too much

lets say I want just a grid (50x50) of dots (like some sprite editor in zoomed mode), and to have cursor moving over this grid with arrow keys, and if you press "1" it makes the current "dot" black, and if you press "2" it makes it white.... and thats it... no mouse, no lines no circles no nothing......

Hope this makes sense...

[Gabriele]

Basically, instead of having a loop, you just get keys in face/feel and do what you want with them. A quick way would be to just use feel/detect for the window face.

[PopMilo]

Well that was my question, acctually... 

Not how to draw grid and change colors, but what should be best way to do more complex apps.

Should I make objects (visible, non visible) and assign different functions for them... assign them to feel-engage stuff?

How do I make game loop for some more complex game?

I know I have to read more, thats for shure thanks for your help!