gtkmm 3.24.8
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:

Public Member Functions

 DisplayManager (DisplayManager && src) noexcept
 
DisplayManageroperator= (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< Displayget_default_display ()
 Gets the default Gdk::Display.
 
Glib::RefPtr< const Displayget_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< Displayopen_display (const Glib::ustring & name)
 Opens a display.
 
Glib::PropertyProxy< Glib::RefPtr< Display > > property_default_display ()
 The default display for GDK.
 
Glib::PropertyProxy_ReadOnly< Glib::RefPtr< Display > > property_default_display () const
 The default display for GDK.
 
Glib::SignalProxy< void, const Glib::RefPtr< Display > & > signal_display_opened ()
 

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< DisplayManagerget ()
 Gets the singleton Gdk::DisplayManager object.
 

Related Symbols

(Note that these are not member symbols.)

Glib::RefPtr< Gdk::DisplayManagerwrap (GdkDisplayManager * object, bool take_copy=false)
 A Glib::wrap() method for this object.
 

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 gdk_set_allowed_backends() to limit what backends can be used.

Since gtkmm 2.2
Returns
The global Gdk::DisplayManager singleton; gdk_parse_args(), gdk_init(), or gdk_init_check() must have been called first.

◆ get_default_display() [1/2]

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

Gets the default Gdk::Display.

Since gtkmm 2.2
Returns
A Gdk::Display, or nullptr if there is no default display.

◆ get_default_display() [2/2]

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

Gets the default Gdk::Display.

Since gtkmm 2.2
Returns
A Gdk::Display, or nullptr if there is no default 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.

Since gtkmm 2.2
Returns
A list of Gdk::Display objects.

◆ open_display()

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

Opens a display.

Since gtkmm 3.0
Parameters
nameThe 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 for GDK.

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 for GDK.

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.

Since gtkmm 2.2
Parameters
displayA 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

The signal_display_opened() signal is emitted when a display is opened.

Since gtkmm 2.2
Parameters
displayThe opened display.

Friends And Related Symbol Documentation

◆ wrap()

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

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

Parameters
objectThe C instance.
take_copyFalse 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.