Hi Andru,

I have toyed with Zengl for a bit yesterday and I must agree, it was surprisingly easy to work with. I had something up and running pretty fast. Although I must admit, much of my code doesn't depended that much on the underlying engine. I can switch pretty easily nowadays.

Anyway, some things I'd like to see:
- documentation. I was able to figure things out using the demos and the zengl source, but some form of documentation would help a lot.
- mouse support/trouble. If you forget to include the zengl mouse unit, but do use one of its functions, you get an access violation during runtime. It took me a long while to figure out where the error came from and would like to see better handling for this.
- same goes for image loading, I forgot to add the font image in my resource directory with an access violation as a result. I'm not sure anymore if this particular case is mentioned in the log, I know it does for the usual images, but I'd like to see a different error in this case.
- +1 for the GUI idea.
- Is it possible to restrict fps while retaining smooth movement?

Thanks & looking forward to the next release.