gtkmm: Gdk::DisplayManager Class Reference

The purpose of the GdkDisplayManager singleton object is to offer notification when displays appear or disappear or the default display changes. More...

#include <gdkmm/displaymanager.h>

Inheritance diagram for Gdk::DisplayManager:

[legend]

Public Member Functions
	DisplayManager (DisplayManager && src) noexcept

DisplayManager &	operator= (DisplayManager && src) noexcept

	~DisplayManager () noexcept override

GdkDisplayManager *	gobj ()
	Provides access to the underlying C GObject.

const GdkDisplayManager *	gobj () const
	Provides access to the underlying C GObject.

GdkDisplayManager *	gobj_copy ()
	Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.

Glib::RefPtr< Display >	get_default_display ()
	Gets the default `Gdk::Display`.

Glib::RefPtr< const Display >	get_default_display () const
	Gets the default `Gdk::Display`.

void	set_default_display (const Glib::RefPtr< Display > & display)
	Sets display as the default display.

std::vector< Glib::RefPtr< Display > >	list_displays ()
	List all currently open displays.

Glib::RefPtr< Display >	open_display (const Glib::ustring & name)
	Opens a display.

Glib::PropertyProxy< Glib::RefPtr< Display > >	property_default_display ()
	The default display.

Glib::PropertyProxy_ReadOnly< Glib::RefPtr< Display > >	property_default_display () const
	The default display.

Glib::SignalProxy< void(const Glib::RefPtr< Display > &)>	signal_display_opened ()

Public Member Functions inherited from Glib::Object
	Object (const Object &)=delete

Object &	operator= (const Object &)=delete

	Object (Object &&src) noexcept

Object &	operator= (Object &&src) noexcept

void *	get_data (const QueryQuark &key)

void	set_data (const Quark &key, void *data)

void	set_data_with_c_callback (const Quark &key, void *data, GDestroyNotify notify)

void	set_data (const Quark &key, void *data, DestroyNotify notify)

void	remove_data (const QueryQuark &quark)

void *	steal_data (const QueryQuark &quark)

Glib::RefPtr< Glib::Object >	wrap (GObject *object, bool take_copy=false)

Public Member Functions inherited from Glib::ObjectBase
	ObjectBase (const ObjectBase &)=delete

ObjectBase &	operator= (const ObjectBase &)=delete

void	set_property_value (const Glib::ustring &property_name, const Glib::ValueBase &value)

void	get_property_value (const Glib::ustring &property_name, Glib::ValueBase &value) const

void	set_property (const Glib::ustring &property_name, const PropertyType &value)

void	get_property (const Glib::ustring &property_name, PropertyType &value) const

PropertyType	get_property (const Glib::ustring &property_name) const

sigc::connection	connect_property_changed (const Glib::ustring &property_name, const sigc::slot< void()> &slot)

sigc::connection	connect_property_changed (const Glib::ustring &property_name, sigc::slot< void()> &&slot)

void	freeze_notify ()

void	thaw_notify ()

virtual void	reference () const

virtual void	unreference () const

GObject *	gobj ()

const GObject *	gobj () const

GObject *	gobj_copy () const

Public Member Functions inherited from sigc::trackable
	trackable () noexcept

	trackable (const trackable &src) noexcept

	trackable (trackable &&src) noexcept

	~trackable ()

void	add_destroy_notify_callback (notifiable *data, func_destroy_notify func) const

void	notify_callbacks ()

trackable &	operator= (const trackable &src)

trackable &	operator= (trackable &&src) noexcept

void	remove_destroy_notify_callback (notifiable *data) const

Static Public Member Functions
static GType	get_type ()
	Get the GType for this class, for use with the underlying GObject type system.

static Glib::RefPtr< DisplayManager >	get ()
	Gets the singleton `Gdk::DisplayManager` object.

Related Symbols
(Note that these are not member symbols.)
Glib::RefPtr< Gdk::DisplayManager >	wrap (GdkDisplayManager * object, bool take_copy=false)
	A Glib::wrap() method for this object.

Additional Inherited Members
Public Types inherited from Glib::Object
typedef void(*)(gpointer data	DestroyNotify)

Public Types inherited from sigc::trackable
typedef internal::func_destroy_notify	func_destroy_notify

Public Types inherited from sigc::notifiable
typedef internal::func_destroy_notify	func_destroy_notify

Protected Member Functions inherited from Glib::Object
	Object ()

	Object (const Glib::ConstructParams &construct_params)

	Object (GObject *castitem)

	~Object () noexcept override

Protected Member Functions inherited from Glib::ObjectBase
	ObjectBase ()

	ObjectBase (const char *custom_type_name)

	ObjectBase (const std::type_info &custom_type_info)

	ObjectBase (ObjectBase &&src) noexcept

ObjectBase &	operator= (ObjectBase &&src) noexcept

virtual	~ObjectBase () noexcept=0

void	initialize (GObject *castitem)

void	initialize_move (GObject castitem, Glib::ObjectBase previous_wrapper)

Detailed Description

The purpose of the GdkDisplayManager singleton object is to offer notification when displays appear or disappear or the default display changes.

Constructor & Destructor Documentation

◆ DisplayManager()

Gdk::DisplayManager::DisplayManager ( DisplayManager && src )

noexcept

◆ ~DisplayManager()

Gdk::DisplayManager::~DisplayManager ( )

overridenoexcept

Member Function Documentation

◆ get()

static Glib::RefPtr< DisplayManager > Gdk::DisplayManager::get ( )

static

Gets the singleton Gdk::DisplayManager object.

When called for the first time, this function consults the GDK_BACKEND environment variable to find out which of the supported GDK backends to use (in case GDK has been compiled with multiple backends).

Applications can use set_allowed_backends() to limit what backends will be used.

Returns: The global Gdk::DisplayManager singleton.

◆ get_default_display() [1/2]

Glib::RefPtr< Display > Gdk::DisplayManager::get_default_display ( )

Gets the default Gdk::Display.

Returns: A Gdk::Display.

◆ get_default_display() [2/2]

Glib::RefPtr< const Display > Gdk::DisplayManager::get_default_display ( ) const

Gets the default Gdk::Display.

Returns: A Gdk::Display.

◆ get_type()

static GType Gdk::DisplayManager::get_type ( )

static

Get the GType for this class, for use with the underlying GObject type system.

◆ gobj() [1/2]

GdkDisplayManager * Gdk::DisplayManager::gobj ( )

inline

Provides access to the underlying C GObject.

◆ gobj() [2/2]

const GdkDisplayManager * Gdk::DisplayManager::gobj ( ) const

inline

Provides access to the underlying C GObject.

◆ gobj_copy()

GdkDisplayManager * Gdk::DisplayManager::gobj_copy ( )

Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.

◆ list_displays()

std::vector< Glib::RefPtr< Display > > Gdk::DisplayManager::list_displays ( )

List all currently open displays.

Returns: A vector of Gdk::Display objects.

◆ open_display()

Glib::RefPtr< Display > Gdk::DisplayManager::open_display ( const Glib::ustring & name )

Opens a display.

Parameters

name	The name of the display to open.

Returns: A Gdk::Display, or nullptr if the display could not be opened.

◆ operator=()

DisplayManager & Gdk::DisplayManager::operator= ( DisplayManager && src )

noexcept

◆ property_default_display() [1/2]

Glib::PropertyProxy< Glib::RefPtr< Display > > Gdk::DisplayManager::property_default_display ( )

The default display.

Returns: A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

◆ property_default_display() [2/2]

Glib::PropertyProxy_ReadOnly< Glib::RefPtr< Display > > Gdk::DisplayManager::property_default_display ( ) const

The default display.

Returns: A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

◆ set_default_display()

void Gdk::DisplayManager::set_default_display ( const Glib::RefPtr< Display > & display )

Sets display as the default display.

Parameters

display A Gdk::Display.

◆ signal_display_opened()

Glib::SignalProxy< void(const Glib::RefPtr< Display > &)> Gdk::DisplayManager::signal_display_opened ( )

Slot Prototype:: void on_my_display_opened(const Glib::RefPtr<Display>& display)

Flags: Run Last

Emitted when a display is opened.

Parameters

display The opened display.

Friends And Related Symbol Documentation

◆ wrap()

Glib::RefPtr< Gdk::DisplayManager > wrap	(	GdkDisplayManager *	object,
		bool	take_copy = `false`
	)

A Glib::wrap() method for this object.

Parameters

object	The C instance.
take_copy	False if the result should take ownership of the C instance. True if it should take a new copy or ref.

Returns: A C++ instance that wraps this C instance.

Public Member Functions

Static Public Member Functions

Related Symbols

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ DisplayManager()

◆ ~DisplayManager()

Member Function Documentation

◆ get()

◆ get_default_display() [1/2]

◆ get_default_display() [2/2]

◆ get_type()

◆ gobj() [1/2]

◆ gobj() [2/2]

◆ gobj_copy()

◆ list_displays()

◆ open_display()

◆ operator=()

◆ property_default_display() [1/2]

◆ property_default_display() [2/2]

◆ set_default_display()

◆ signal_display_opened()

Friends And Related Symbol Documentation

◆ wrap()