Hey there folks, hope all is well 😄

As per the code at https://github.com/rust-windowing/winit/blob/master/src/platform_impl/windows/window_state.rs#L304, winit will use the SW_SHOW flag when the window is set to visible which will both make it visible and activate the window (i.e. switch to it). Here are the relevant SDK docs.

Since I'm developing a widget application which is really intended as an overlay, I'm using window settings such as these below:

    let window_builder = WindowBuilder::new()
        .with_title("TotalMix Volume Control")
        .with_always_on_top(true)
        .with_decorations(false)
        .with_skip_taskbar(true)
        .with_drag_and_drop(false)
        .with_resizable(false)
        .with_transparent(true)
...
                // Allow the mouse cursor to pass through the window.
                gl_window.window().set_cursor_hittest(false).unwrap();
...

This works great but I'd really like the ability to make the window visible without activating it (using the SW_SHOWNOACTIVATE flag) so that focus is not taken away from whatever window the user is working on. I've verified this indeed works exactly as expected too.

Do you think this is something we could support in winit? I'm not sure if this is possible in all OSs but I know that it definitely works on Windows.

Thanks heaps!
Fotis