[Newbies] Reading only parts of images, tiles

[Brad Fuller]

On Mon September 17 2007, Peter Schneider wrote:
> Hi,
>
> Is there any class which is able to read only a specific part of a given
> image? I can read and display entire images with "Forms" just fine, but it
> does not seem to permit me reading only parts of it.
> The reason i'm asking this is because i want to implement a simple tile
> graphics engine, so i need a way to break down images into single parts.

Clarification: when you say "image" do you mean graphic type files (PNG, GIF, 
JPG, etc.)?