Crate wita

Expand description

A window library in Rust for Windows.

wita is a library that create a window and run an event loop. It is only for Windows.

Example

struct Application;

impl Application {
    fn new() -> Result<Self, wita::ApiError> {
        wita::WindowBuilder::new()
            .title("hello, world!")
            .build()?;
        Ok(Self)
    }
}

impl wita::EventHandler for Application {
    fn closed(&mut self, _: &wita::Window) {
        println!("closed");
    }
}

fn main() {
    wita::run(wita::RunType::Wait, Application::new).unwrap();
}

Event handling

You must implement EventHandler for the your defined object, and can handle events in the impl EventHandler.

struct Foo {}

impl Foo {
    fn new() -> Result<Self, wita::ApiError> {
        wita::WindowBuilder::new().build()?;
        Ok(Self {})
    }
}

impl wita::EventHandler for Foo {
    // You define handlers.
    // For example, handle the event that closed the window.
    fn closed(&mut self, _: &wita::Window) {
        // write handling codes
    }
}

Next, pass the your defined object to run.

wita::run(wita::RunType::Wait, Foo::new).unwrap();

There are directly no any methods for drawing on a Window in wita. However, a Window provides the raw_handle that return a pointer which is HWND. You can create a drawing context by using the raw_handle such as DirectX, Vulkan, etc.