Struct WindowMetricsHandle 

pub struct WindowMetricsHandle { /* private fields */ }

A cloneable handle for reading a window’s metrics without borrowing it.

The snapshot it reads is published by the window, so a handle can be held by an entity or moved to a background task and read at any time, without the window being borrowed and without a round trip through the UI thread.

Implementations

impl WindowMetricsHandle

pub fn id(&self) -> WindowId

The id of the window these metrics were sampled from.

pub fn snapshot(&self) -> Arc<WindowMetrics>

The snapshot all of the accessors below read from.

Reading one snapshot rather than several keeps the values consistent with each other, since a frame may publish a new one in between.

pub fn bounds(&self) -> Bounds<Pixels>

The window’s bounds in the global coordinate space, which can span displays.

pub fn viewport(&self) -> Bounds<Pixels>

The visible viewport in window-local logical pixels.

Unlike Self::content_size, this can shrink or move when a software keyboard opens.

pub fn content_size(&self) -> Size<Pixels>

The size of the drawable area, which is the window’s full layout size.

pub fn scale_factor(&self) -> f32

The scale factor of the display the window is on.

pub fn display_id(&self) -> Option<DisplayId>

The display the window is on, when the platform reports one.

pub fn is_active(&self) -> bool

Whether this is the platform’s active, or focused, window.

pub fn is_fullscreen(&self) -> bool

Whether the window is fullscreen.