Contributions are very welcome! Even if just for submitting bug fixes, improving the documentation, adding tests and/or examples.
The wrapper itself which can be found in the fltk-sys directory, it uses C89 for the headers and C++11 for the source files. Bindgen is used on the header files using bind.sh script. It's not added as dependency to this project since it depends on libclang and llvm which has some build issues on windows last time I tried it. C89 was chosen for the headers since bindgen works best with them. It's possible to contribute by directly modifying the .rs files in the fltk-sys directory. For the C/C++ code, the supplied clang-format formatting is used.
The Rust code shouldn't use nightly or unstable features. Avoid pulling other dependencies. Doc comments would also be appreciated. rustfmt is used for formatting. Pull requests automatically go to the github workflow in which the crate is built on the major desktop platforms, along with all the examples.
Each example should be in a single file, with no dependencies to other than this crate. This allows each example to be standalone.
Please open an issue for such changes before going ahead and doing them. It allows for discussion regarding the proposed changes. This crate ties to stay as close as possible to the FLTK api, which offers familiarity to people having used FLTK, and allows easier referral to the official documentation.