Enum WindowBackgroundAppearance 

pub enum WindowBackgroundAppearance {
    Opaque,
    Transparent,
    Blurred,
    MicaBackdrop,
    MicaAltBackdrop,
}

How a window’s background is drawn when there is no content or the content is transparent.

The variants a platform supports depend on the target. The Mica backdrop materials are supported only on Windows 11, and are ignored elsewhere. Set the appearance with the macos_window_background, windows_window_background, linux_window_background or web_window_background field of WindowOptions.

Variants

Opaque

Opaque.

This lets the window manager know that content behind this window does not need to be drawn.

Actual color depends on the system and themes should define a fully opaque background color instead.

Transparent

Plain alpha transparency.

Blurred

Transparency, but the contents behind the window are blurred.

Not always supported.

MicaBackdrop

The Mica backdrop material, supported on Windows 11.

MicaAltBackdrop

The Mica Alt backdrop material, supported on Windows 11.

Implementations

impl WindowBackgroundAppearance

pub fn is_opaque(&self) -> bool

Whether the window’s background hides everything behind the window, letting the platform skip compositing the content it covers.

pub fn is_transparent(&self) -> bool

Whether the window’s background lets content behind the window show through, either directly, blurred, or via a system backdrop material.

Trait Implementations

impl Clone for WindowBackgroundAppearance

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 WindowBackgroundAppearance

impl Debug for WindowBackgroundAppearance

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

Formats the value using the given formatter.

impl Default for WindowBackgroundAppearance

fn default() -> Self

Returns the “default value” for a type.

impl From<LinuxWindowBackground> for WindowBackgroundAppearance

Available on FreeBSD or Linux only.

fn from(background: LinuxWindowBackground) -> Self

Converts to this type from the input type.

impl PartialEq for WindowBackgroundAppearance

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for WindowBackgroundAppearance