Interesting. Glider 4.0 was written in Pascal (https://raw.githubusercontent.com/softdorothy/Glider4 https://raw.githubusercontent.com/softdorothy/Glider4), but

Interesting. Glider 4.0 was written in Pascal (https://raw.githubusercontent.com/softdorothy/Glider4 https://raw.githubusercontent.com/softdorothy/Glider4), but Glider Pro is in C. John Calhoun did say that he's finding himself going back to C now that he's retired from Apple.