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SDL graphics: coordinates on macOS

TL;DR: Y range is h–2×h, not 0–h… due to Cocoa!

Photo by krakenimages on Unsplash

A few days ago I just wanted to show something new (OK, very old, in fact) to my children: how C can be used to draw things on a screen.

So, I’ve tried to create a simple graphics program using C and SDL library. I’ve chosen SDL because it’s linked by default if we go within Expresso-C on macOS…

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Sorin Dolha

Sorin Dolha

Software developer at DlhSoft • married • father of two • MacBook enthusiast • writing from Cluj