C-Macs

It's open source but it is still under copyright. There are notices in the source file: https://github.com/CodaFi/C-Macs/blob/master/CMacs/View.c#L5... I would definitely ask permission and encourage the author to change the license before using this code. Since API calls are purely functional and not covered by copyright you can mimic the behavior here but you'll need to rewrite everything from scratch, notably the most expressive parts, which are: https://github.com/CodaFi/C-Macs/blob/master/CMacs/CMacsType... https://github.com/CodaFi/C-Macs/blob/master/CMacs/CMacsType... The organization and structure of this code is arbitrary and within the author's creative expression.