Struct X11Screen 

pub struct X11Screen { /* private fields */ }

Signals

window-manager-changed

Screen

composited-changed

The ::composited-changed signal is emitted when the composited status of the screen changes

monitors-changed

The ::monitors-changed signal is emitted when the number, size or position of the monitors attached to the screen change.

Only for X11 and OS X for now. A future implementation for Win32 may be a possibility.

size-changed

The ::size-changed signal is emitted when the pixel width or height of a screen changes.

Implements

[trait@gdk::prelude::ScreenExt]

Implementations

impl X11Screen

pub fn current_desktop(&self) -> u32

Returns the current workspace for self when running under a window manager that supports multiple workspaces, as described in the Extended Window Manager Hints specification.

Returns

the current workspace, or 0 if workspaces are not supported

pub fn monitor_output(&self, monitor_num: i32) -> XID

Gets the XID of the specified output/monitor. If the X server does not support version 1.2 of the RANDR extension, 0 is returned.

monitor_num

number of the monitor, between 0 and gdk_screen_get_n_monitors (screen)

Returns

the XID of the monitor

pub fn number_of_desktops(&self) -> u32

Returns the number of workspaces for self when running under a window manager that supports multiple workspaces, as described in the Extended Window Manager Hints specification.

Returns

the number of workspaces, or 0 if workspaces are not supported

pub fn screen_number(&self) -> i32

Returns the index of a gdk::Screen.

Returns

the position of self among the screens of its display

pub fn window_manager_name(&self) -> Option<GString>

Returns the name of the window manager for self.

Returns

the name of the window manager screen self, or “unknown” if the window manager is unknown. The string is owned by GDK and should not be freed.

pub fn lookup_visual(&self, xvisualid: VisualID) -> Option<X11Visual>

Looks up the gdk::Visual for a particular screen and X Visual ID.

xvisualid

an X Visual ID.

Returns

the gdk::Visual (owned by the screen object), or None if the visual ID wasn’t found.

pub fn supports_net_wm_hint(&self, property: &Atom) -> bool

This function is specific to the X11 backend of GDK, and indicates whether the window manager supports a certain hint from the Extended Window Manager Hints specification.

When using this function, keep in mind that the window manager can change over time; so you shouldn’t use this function in a way that impacts persistent application state. A common bug is that your application can start up before the window manager does when the user logs in, and before the window manager starts supports_net_wm_hint() will return false for every property. You can monitor the window_manager_changed signal on gdk::Screen to detect a window manager change.

property

a property atom.

Returns

true if the window manager supports property

pub fn connect_window_manager_changed<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

Trait Implementations

impl Clone for X11Screen

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for X11Screen

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

Formats the value using the given formatter.

impl Display for X11Screen

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

Formats the value using the given formatter.

impl Eq for X11Screen

impl HasParamSpec for X11Screen

type ParamSpec = ParamSpecObject

type SetValue = X11Screen

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

type BuilderFn = fn(&str) -> ParamSpecObjectBuilder<'_, X11Screen>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for X11Screen

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 IsA<Screen> for X11Screen

impl Ord for X11Screen

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

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl ParentClassIs for X11Screen

type Parent = Screen

impl<OT: ObjectType> PartialEq<OT> for X11Screen

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

Equality operator ==.

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

Inequality operator !=.

impl<OT: ObjectType> PartialOrd<OT> for X11Screen

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl StaticType for X11Screen

fn static_type() -> Type

Returns the type identifier of Self.