A FreeBASIC header should expose the C library interface accurately while still looking like normal FreeBASIC source. Start from the C declarations, translate types and calling conventions carefully, then keep platform-specific differences visible instead of hiding them behind guesses.
Basic process
- Identify the library version and platform ABI being translated.
- Translate constants, enums, structs, unions, callbacks, and functions.
- Use the C type comparison table for integer, pointer, string, and size types.
- Keep conditional declarations close to the platform condition that requires them.
- Compile small examples against the header on the target platform.
Useful pages