Simplest Rust Qt5 "Hello World" example

README.md

Linux Requirements:

• rust
• qt5-base
• gcc
• cmake

Cargo.toml

[package]
name = "hello_world"
version = "0.1.0"
edition = "2018"

[dependencies]
qt_core = "*"
qt_gui = "*"
qt_widgets = "*"

main.rs

#![windows_subsystem = "windows"]

use qt_widgets::{
    qt_core::QString,
    QApplication,
    QLabel,
};

fn main() {
    QApplication::init(|_| unsafe {
        let mut label = QLabel::from_q_string(&QString::from_std_str("Hello World"));
        label.show();
        QApplication::exec()
    })
}