Struct gdk4::Display

#[repr(transparent)]
pub struct Display { /* private fields */ }

Display objects are the GDK representation of a workstation.

Their purpose are two-fold:

• To manage and provide information about input devices (pointers, keyboards, etc)
• To manage and provide information about output devices (monitors, projectors, etc)

Most of the input device handling has been factored out into separate Seat objects. Every display has a one or more seats, which can be accessed with DisplayExt::default_seat() and DisplayExt::list_seats().

Output devices are represented by Monitor objects, which can be accessed with DisplayExt::monitor_at_surface() and similar APIs.

Properties

composited

true if the display properly composites the alpha channel.

Readable

input-shapes

true if the display supports input shapes.

Readable

rgba

true if the display supports an alpha channel.

Readable

Signals

closed

Emitted when the connection to the windowing system for @display is closed.

opened

Emitted when the connection to the windowing system for @display is opened.

seat-added

Emitted whenever a new seat is made known to the windowing system.

seat-removed

Emitted whenever a seat is removed by the windowing system.

setting-changed

Emitted whenever a setting changes its value.

Implements

DisplayExt, DisplayExtManual

Implementations

impl Display

pub const NONE: Option<&'static Display> = None

pub fn default() -> Option<Display>

Gets the default Display.

This is a convenience function for:

gdk_display_manager_get_default_display (gdk_display_manager_get ())

Returns

a Display, or None if there is no default display

pub fn open(display_name: Option<&str>) -> Option<Display>

Opens a display.

If opening the display fails, NULL is returned.

display_name

the name of the display to open

Returns

a Display

Trait Implementations

impl Clone for Display

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Display

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

Formats the value using the given formatter.

impl Display for Display

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

Formats the value using the given formatter.

impl HasParamSpec for Display

type ParamSpec = ParamSpecObject

type SetValue = Display

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, Display>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for Display

fn hash<H>(&self, state: &mut H)where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Display

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl ParentClassIs for Display

type Parent = Object

impl<OT: ObjectType> PartialEq<OT> for Display

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<OT: ObjectType> PartialOrd<OT> for Display

fn partial_cmp(&self, other: &OT) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StaticType for Display

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for Display