Struct WindowOptions 

pub struct WindowOptions {

    pub window_bounds: Option<WindowBounds>,
    pub titlebar: Option<TitlebarOptions>,
    pub focus: bool,
    pub show: bool,
    pub kind: WindowKind,
    pub is_movable: bool,
    pub app_owns_titlebar_drag: bool,
    pub is_resizable: bool,
    pub is_minimizable: bool,
    pub display_id: Option<DisplayId>,
    pub window_background: WindowBackgroundAppearance,
    pub app_id: Option<String>,
    pub window_min_size: Option<Size<Pixels>>,
    pub window_decorations: Option<WindowDecorations>,
    pub icon: Option<Arc<RgbaImage>>,
    pub tabbing_identifier: Option<String>,
}

The variables that can be configured when creating a new window

Fields

window_bounds: Option<WindowBounds>

Specifies the state and bounds of the window in screen coordinates.

• None: Inherit the bounds.
• Some(WindowBounds): Open a window with corresponding state and its restore size.

titlebar: Option<TitlebarOptions>

The titlebar configuration of the window

focus: bool

Whether the window should be focused when created

show: bool

Whether the window should be shown when created

kind: WindowKind

The kind of window to create

is_movable: bool

Whether the window can be moved by the user. When false, the user cannot drag the window (on macOS this sets NSWindow.isMovable, which also disables the Window-menu tiling items); programmatic moves are still allowed.

app_owns_titlebar_drag: bool

Whether the application owns dragging of the (custom) titlebar, rather than AppKit. Only has an effect on macOS.

Set this to true for windows that draw their own titlebar and move the window themselves via Window::start_window_move. It marks the whole content view as app-owned titlebar content, so AppKit neither drags the window from the titlebar nor delays titlebar clicks while disambiguating double-clicks (a delay first observed on macOS 27). It is independent of is_movable, so such windows stay user-movable (via their own drag) and keep the Window-menu tiling items enabled.

Leave this false for windows that rely on AppKit’s native titlebar dragging.

is_resizable: bool

Whether the window should be resizable by the user

is_minimizable: bool

Whether the window should be minimized by the user

display_id: Option<DisplayId>

The display to create the window on, if this is None, the window will be created on the main display

window_background: WindowBackgroundAppearance

The appearance of the window background.

app_id: Option<String>

Application identifier of the window. Can by used by desktop environments to group applications together.

window_min_size: Option<Size<Pixels>>

Window minimum size

window_decorations: Option<WindowDecorations>

Whether to use client or server-side decorations on X11 and Wayland. The platform may ignore requests it cannot satisfy.

icon: Option<Arc<RgbaImage>>

Icon image (X11 only)

tabbing_identifier: Option<String>

Tab group name, allows opening the window as a native tab on macOS 10.12+. Windows with the same tabbing identifier will be grouped together.

Trait Implementations

impl Debug for WindowOptions

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for WindowOptions

fn default() -> Self

Returns the “default value” for a type.