Yeah, you're right. It's Modifier not Mod. I was thrown off by some C code using SDL. However, I've just discovered that I can also capture SHIFT by using SDLK_LSHIFT and SDLK_RSHIFT, which is a lot easier for my needs. Yay!

In other news, I've actually got the latest version of FPC installed. I misread the version of the IDE as the version of the compiler. ops: