(In any programming language ...) This is a great place to use classes. The image-handling operations are defined by what (in other languages) would be called an "abstract parent-class" which defines how the rest of the application sees it. Then, for each actual implementation, you have a "concrete" child class that inherits from the parent and implements all of its methods.

It is also common practice to build a "factory" which, given various appropriate parameters to describe the input that is to be handled, automatically returns a child object of the appropriate concrete class. The rest of the application, therefore, doesn't have to care. It simply treats the returned object as though it were the abstract parent.

In reply to Re: Best practice for a module which can use one of multiple image modules by Anonymous Monk
in thread Best practice for a module which can use one of multiple image modules by Cody Fendant

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