winctx
A minimal window context for Rust on Windows.
I read msdn so you don't have to.
This crate provides a minimalistic method for setting up and running a window. A window on windows is more like a generic application framework and doesn't actually need to have any visible elements, but is necessary to do many of the productive things you might want to do on Windows.
Some example of this are:
- Register and use a tray icon with a popup menu, or the "clickable icons" you see in the bottom right for running applications.
- Send desktop notifcations, or "balloons" as they are sometimes called.
- Interact with the clipboard and monitor it for changes.
- Copy data to a remote process, allowing for very simple unidirection IPC.
There are a few additional APIs provided by this crate because they are also useful:
- Basic safe registry access allowing for example of the registration of an application that should be started automatically when the user logs in.
This crate is an amalgamation and cleanup of code I've copied back and forth between my projects, so it is fairly opinionated to things I personally find useful. Not everything will be possible, but if there is something you're missing and hate being happy enjoy Windows programming feel free to open an issue or a pull request.
Example
The primary purpose of this crate is to:
- Define a window and its capabilities. I.e. if it should have a context menu or receive clipboard events.
- Handle incoming Events from the window.
The basic loop looks like this:
use std::pin::pin;
use tokio::signal::ctrl_c;
use winctx::{Event, CreateWindow};
const ICON: &[u8] = include_bytes!("tokio.ico");
let mut window = CreateWindow::new("se.tedro.Example")
.window_name("Example Application");
let icon = window.icons().insert_buffer(ICON, 22, 22);
let area = window.new_area().icon(icon);
let menu = area.popup_menu();
let first = menu.push_entry("Example Application").id();
menu.push_separator();
let quit = menu.push_entry("Quit").id();
menu.set_default(first);
let (sender, mut event_loop) = window
.build()
.await?;
let mut ctrl_c = pin!(ctrl_c());
let mut shutdown = false;
loop {
let event = tokio::select! {
_ = ctrl_c.as_mut(), if !shutdown => {
sender.shutdown();
shutdown = true;
continue;
}
event = event_loop.tick() => {
event?
}
};
match event {
Event::MenuItemClicked { item_id, .. } => {
println!("Menu entry clicked: {item_id:?}");
if item_id == quit {
sender.shutdown();
}
}
Event::Shutdown { .. } => {
println!("Window shut down");
break;
}
_ => {}
}
}
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