.titlebar / set_titlebar for window builder in gtk4-rs

Platform
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1

Trying to write application in Rust (gtk4-rs 0.9.1) but titlebar setter available for v4_6 feature enabled only. What is this mean - the .titlebar (set_titlebar) feature is deprecated or just testing?

I’ve used it before in C++, and it is officially documented without deprecation warnings, problem with gtk4-rs only until I provide this version in Cargo.toml:

[dependencies]
gtk4 = { version = "0.9.1", features = ["v4_6"] }

Here is the code example, where .titlebar is not found by default:

use gtk4 as gtk;
use gtk::{Application, ApplicationWindow};

pub fn new(app: &Application) -> ApplicationWindow
{
    return ApplicationWindow::builder().application(app)
                                       .default_width(640)
                                       .default_height(480)
                                       .titlebar(&header::new()) // feature = "v4_6" required
                                       .child(&main::new())
                                       .build();
}

Thanks for any info as beginner in GTK ecosystem

2

Well, seems it’s just minimal version dependency, have changed to v4_8 as latest in my system. Should work with newer so.