This week Ive been thinking a lot about how to design a UI toolkit, and this is about to get very techy, because I would like to talk about API design.

I prefer C to C++ and I'm not particularly fond of Object orientation (Although i use it on occasion). UIs is an area that are often thought of as a place where Object Oriented design realy shines, but I think that is because of how we think UIs should be designed. Lets have a look at how one would typically create a button in a UI system:

void my_button_callback(void *user)
{

Good morning and thanks for popping in to our cozy little corner of the blogosphere, it's week two of the Ultimate Coder: Going Perceptual Challenge and I'm here to give you the low-down on what we've been up to!

I've just made a warm pot of tea and have managed to find a single perfectly formed biscuit in the tin (Rob's brutish foraging has left most of them in pieces, what a crime!) but I've got what I need to get comfortable and reveal all…