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Building Your First C-Compatible DLL in Rust: A Guide to rust_pub.dll

Rust is gaining massive popularity for systems programming, but its power isn't just for standalone binaries. You can create shared libraries (DLLs on Windows) that other applications can "borrow" logic from. Today, we’ll build rust_pub.dll . 1. Initialize the Project

Note: Always use cdylib over dylib for C-compatibility to keep the file size smaller and avoid Rust-specific linking issues. 3. Writing the Code ( src/lib.rs ) rust_pub.dll

For advanced Windows API integration, check the official Microsoft documentation on calling conventions .

Explore more Rust FFI (Foreign Function Interface) examples on GitHub . Creating A DLL With Rust - Sam Rambles Building Your First C-Compatible DLL in Rust: A

Start by creating a new library project. Use the --lib flag to tell Cargo you aren't making an executable. cargo new rust_pub --lib cd rust_pub Use code with caution. Copied to clipboard 2. Configure Cargo.toml

To make a function visible to the outside world, you need three key ingredients: pub , extern "C" , and #[no_mangle] . Writing the Code ( src/lib

: Bridge the gap between modern Rust safety and legacy systems. Resources for Further Learning