# glutin - OpenGL, UTilities and INput
[](https://gitter.im/tomaka/glutin?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
[](https://crates.io/crates/glutin)
[](https://docs.rs/glutin)
Alternative to GLFW in pure Rust.
[](https://travis-ci.org/tomaka/glutin)
[](https://ci.appveyor.com/project/tomaka/glutin/branch/master)
```toml
[dependencies]
glutin = "*"
```
## [Documentation](https://docs.rs/glutin)
## Try it!
```bash
git clone https://github.com/tomaka/glutin
cd glutin
cargo run --example window
```
## Usage
Glutin is an OpenGL context creation library and doesn't directly provide OpenGL bindings for you.
```toml
[dependencies]
gl = "*"
libc = "*"
```
```rust
extern crate gl;
extern crate glutin;
extern crate libc;
use glutin::GlContext;
fn main() {
let events_loop = glutin::EventsLoop::new();
let window = glutin::WindowBuilder::new()
.with_title("Hello, world!")
.with_dimensions(1024, 768);
let context = glutin::ContextBuilder::new()
.with_vsync(true);
let gl_window = glutin::GlWindow::new(window, context, &events_loop).unwrap();
unsafe {
gl_window.make_current().unwrap();
}
unsafe {
gl::load_with(|symbol| gl_window.get_proc_address(symbol) as *const _);
gl::ClearColor(0.0, 1.0, 0.0, 1.0);
}
let mut running = true;
while running {
events_loop.poll_events(|event| {
match event {
glutin::winit::Event::WindowEvent{ event, .. } => match event {
glutin::winit::WindowEvent::Closed => running = false,
glutin::winit::WindowEvent::Resized(w, h) => gl_window.resize(w, h),
},
_ => ()
}
});
unsafe {
gl::Clear(gl::COLOR_BUFFER_BIT);
}
gl_window.swap_buffers().unwrap();
}
}
```
Note that glutin aims at being a low-level brick in your rendering infrastructure. You are encouraged to write another layer of abstraction between glutin and your application.
## Platform-specific notes
### Android
- To compile the examples for android, initialize the submodules, go to `deps/apk-builder/apk-builder` and run `cargo build`, then go back to `glutin` and call `ANDROID_HOME=/path/to/sdk NDK_HOME=/path/to/ndk NDK_STANDALONE=/path/to/standalone cargo test --no-run --target=arm-linux-androideabi`
### X11
- The plan is that glutin tries to dynamically link-to and use wayland if possible. If it doesn't work, it will try xlib instead. If it doesn't work, it will try libcaca. This is work-in-progress.