Struct TitleBar 

pub struct TitleBar {
    pub height: f32,
    pub leading: f32,
    pub buttons: Option<Rect>,
    pub icon: Option<&'static [u8]>,
    pub hovered: Option<CaptionButton>,
    pub pressed: Option<CaptionButton>,
    pub maximized: bool,
    pub active: bool,
    pub background: Option<Color>,
    pub foreground: Option<Color>,
    pub system_paints: bool,
}

The title bar’s line, when the application’s content shares it, as the shell reports it: how tall the line is, and what the system keeps on it.

Fields

height: f32

The line’s height, in logical pixels: the system’s.

leading: f32

Room the system keeps at the line’s start, in logical pixels — buttons it draws itself there.

buttons: Option<Rect>

Where the system’s three buttons are, in logical pixels from the window’s top left, when the application paints them; None when the system draws them itself.

icon: Option<&'static [u8]>

The window’s icon, to paint at the line’s start; None when the system shows none there.

hovered: Option<CaptionButton>

The button the pointer is over.

pressed: Option<CaptionButton>

The button being pressed.

maximized: bool

Whether the window is maximized: the middle button then restores.

active: bool

Whether the window is the active one: an inactive window’s glyphs are quieter.

background: Option<Color>

The system’s surface for the line, as it would draw its own caption for the window now — active or not; None where the shell cannot tell (milestone 642).

foreground: Option<Color>

The system’s words on that caption, likewise.

system_paints: bool

The system paints the line (milestone 643): its backdrop — on Windows 11 the wallpaper-tinted one — and its three buttons, with their own hover and press, show through wherever the application leaves the line transparent. The application then paints neither, unless it was told a background; it paints the window’s icon and its menu bar.

Trait Implementations

impl Clone for TitleBar

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for TitleBar

impl Debug for TitleBar

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

Formats the value using the given formatter.

impl PartialEq for TitleBar

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for TitleBar