There is transparent part just under menu bar

[ierturk]

Bug Description

There is transparent part just under menu bar as in the image below

Reproducible Code (if applicable)

use slint::ComponentHandle;
use slint::ModelRc;
use slint::SharedString;
use slint::VecModel;

fn main() {
    let app_window = AppWindow::new().unwrap();

    let items = ["Delta", "Echo", "Foxtrot"];
    let model = VecModel::from_iter(items.iter().copied().map(SharedString::from));
    let model = ModelRc::new(model);
    app_window.set_dynamic_menu_items(model);
    app_window.run().unwrap();
}

slint::slint! {
    import { ComboBox } from "std-widgets.slint";

    export component AppWindow inherits Window {
        in property <[string]> dynamic-menu-items;
        MenuBar {
            Menu {
                title: "Static";
                MenuItem {
                    title: "Alpha";
                }

                MenuItem {
                    title: "Bravo";
                }

                MenuItem {
                    title: "Charlie";
                }
            }

            Menu {
                title: "Dynamic";
                for title in root.dynamic-menu-items: MenuItem {
                    title: title;
                }
            }
        }
    }
}

Environment Details

• Slint Version: 1.10 / Nightly
• Platform/OS: Windows 11
• Programming Language: Rust
• Backend/Renderer: Default

Product Impact

There is transparent part just under menu bar

[ogoffart]

Thanks for the bug report.
I cannot reproduce this bug, running your example on Windows.
Does it always happen as you start the app?

We use the muda crate to show the menu bar on windows, but maybe we're doing something wrong.

[ierturk]

Thank you. Yes, this is persistent on my system. The Rust version is rustc 1.84.1 (e71f9a9a9 2025-01-27).
I attached the project

slint-nightly.zip

[tronical]

I tried this on my Windows 10 installation and it's working as expected. Just cargo run brings it up correctly. Or is there anything else I should try to do to trigger this bug?

[ierturk]

I don't know how to reproduce the bug. The cargo run gives the result in the attached image. My system is Windows 11. Do you need extra debug information from the app or system?