Notice: Undefined offset: 1 in /home/developpez/www/developpez-com/upload/qt/doc/redir.php on line 39 Qt 4.7: QX11Info Class Reference
Viadeo Twitter Google Bookmarks ! Facebook Digg del.icio.us MySpace Yahoo MyWeb Blinklist Netvouz Reddit Simpy StumbleUpon Bookmarks Windows Live Favorites 
Logo Documentation Qt ·  Page d'accueil  ·  Toutes les classes  ·  Toutes les fonctions  ·  Vues d'ensemble  · 

QX11Info Class Reference

The QX11Info class provides information about the X display configuration. More...

 #include <QX11Info>

Public Functions

QX11Info ()
QX11Info ( const QX11Info & other )
~QX11Info ()
int cells () const
Qt::HANDLE colormap () const
bool defaultColormap () const
bool defaultVisual () const
int depth () const
int screen () const
void * visual () const
QX11Info & operator= ( const QX11Info & other )

Static Public Members

int appCells ( int screen = -1 )
const char * appClass ()
Qt::HANDLE appColormap ( int screen = -1 )
bool appDefaultColormap ( int screen = -1 )
bool appDefaultVisual ( int screen = -1 )
int appDepth ( int screen = -1 )
int appDpiX ( int screen = -1 )
int appDpiY ( int screen = -1 )
Qt::HANDLE appRootWindow ( int screen = -1 )
int appScreen ()
unsigned long appTime ()
unsigned long appUserTime ()
void * appVisual ( int screen = -1 )
Display * display ()
bool isCompositingManagerRunning ()
void setAppDpiX ( int screen, int xdpi )
void setAppDpiY ( int screen, int ydpi )
void setAppTime ( unsigned long time )
void setAppUserTime ( unsigned long time )

Detailed Description

The QX11Info class provides information about the X display configuration.

The class provides two APIs: a set of non-static functions that provide information about a specific widget or pixmap, and a set of static functions that provide the default information for the application.

Warning: This class is only available on X11. For querying per-screen information in a portable way, use QDesktopWidget.

See also QWidget::x11Info(), QPixmap::x11Info(), and QDesktopWidget.

Member Function Documentation

QX11Info::QX11Info ()

Constructs an empty QX11Info object.

QX11Info::QX11Info ( const QX11Info & other )

Constructs a copy of other.

QX11Info::~QX11Info ()

Destroys the QX11Info object.

int QX11Info::appCells ( int screen = -1 ) [static]

Returns the number of cells used by the application on the given screen.

The screen argument is an X screen number. Be aware that if the user's system uses Xinerama (as opposed to traditional X11 multiscreen), there is only one X screen. Use QDesktopWidget to query for information about Xinerama screens.

See also cells().

const char * QX11Info::appClass () [static]

Returns the X11 application class.

See also display().

Qt::HANDLE QX11Info::appColormap ( int screen = -1 ) [static]

Returns a handle for the application's color map on the given screen.

The screen argument is an X screen number. Be aware that if the user's system uses Xinerama (as opposed to traditional X11 multiscreen), there is only one X screen. Use QDesktopWidget to query for information about Xinerama screens.

See also colormap() and defaultColormap().

bool QX11Info::appDefaultColormap ( int screen = -1 ) [static]

Returns true if the application has a default color map on the given screen; otherwise returns false.

The screen argument is an X screen number. Be aware that if the user's system uses Xinerama (as opposed to traditional X11 multiscreen), there is only one X screen. Use QDesktopWidget to query for information about Xinerama screens.

bool QX11Info::appDefaultVisual ( int screen = -1 ) [static]

Returns true if the application has a default visual on the given screen; otherwise returns false.

The screen argument is an X screen number. Be aware that if the user's system uses Xinerama (as opposed to traditional X11 multiscreen), there is only one X screen. Use QDesktopWidget to query for information about Xinerama screens.

int QX11Info::appDepth ( int screen = -1 ) [static]

Returns the color depth (bits per pixel) used by the application on the given screen.

The screen argument is an X screen number. Be aware that if the user's system uses Xinerama (as opposed to traditional X11 multiscreen), there is only one X screen. Use QDesktopWidget to query for information about Xinerama screens.

See also depth().

int QX11Info::appDpiX ( int screen = -1 ) [static]

Returns the horizontal resolution of the given screen in terms of the number of dots per inch.

The screen argument is an X screen number. Be aware that if the user's system uses Xinerama (as opposed to traditional X11 multiscreen), there is only one X screen. Use QDesktopWidget to query for information about Xinerama screens.

See also setAppDpiX() and appDpiY().

int QX11Info::appDpiY ( int screen = -1 ) [static]

Returns the vertical resolution of the given screen in terms of the number of dots per inch.

The screen argument is an X screen number. Be aware that if the user's system uses Xinerama (as opposed to traditional X11 multiscreen), there is only one X screen. Use QDesktopWidget to query for information about Xinerama screens.

See also setAppDpiY() and appDpiX().

Qt::HANDLE QX11Info::appRootWindow ( int screen = -1 ) [static]

Returns a handle for the applications root window on the given screen.

The screen argument is an X screen number. Be aware that if the user's system uses Xinerama (as opposed to traditional X11 multiscreen), there is only one X screen. Use QDesktopWidget to query for information about Xinerama screens.

See also QApplication::desktop().

int QX11Info::appScreen () [static]

Returns the number of the screen where the application is being displayed.

See also display() and screen().

unsigned long QX11Info::appTime () [static]

Returns the X11 time.

See also setAppTime() and appUserTime().

unsigned long QX11Info::appUserTime () [static]

Returns the X11 user time.

See also setAppUserTime() and appTime().

void * QX11Info::appVisual ( int screen = -1 ) [static]

Returns the current visual used by the application on the given screen.

The screen argument is an X screen number. Be aware that if the user's system uses Xinerama (as opposed to traditional X11 multiscreen), there is only one X screen. Use QDesktopWidget to query for information about Xinerama screens.

See also visual() and defaultVisual().

int QX11Info::cells () const

Returns the number of cells.

See also appCells().

Qt::HANDLE QX11Info::colormap () const

Returns a handle for the color map.

See also defaultColormap().

bool QX11Info::defaultColormap () const

Returns true if there is a default color map; otherwise returns false.

See also colormap().

bool QX11Info::defaultVisual () const

Returns true if there is a default visual; otherwise returns false.

See also visual() and appVisual().

int QX11Info::depth () const

Returns the color depth (bits per pixel) of the X display.

See also appDepth().

Display * QX11Info::display () [static]

Returns the default display for the application.

See also appScreen().

bool QX11Info::isCompositingManagerRunning () [static]

Returns true if there is a compositing manager running.

This function was introduced in Qt 4.4.

int QX11Info::screen () const

Returns the number of the screen currently in use.

The return value is an X screen number. Be aware that if the user's system uses Xinerama (as opposed to traditional X11 multiscreen), there is only one X screen. Use QDesktopWidget to query for information about Xinerama screens.

See also appScreen().

void QX11Info::setAppDpiX ( int screen, int xdpi ) [static]

Sets the horizontal resolution of the given screen to the number of dots per inch specified by xdpi.

The screen argument is an X screen number. Be aware that if the user's system uses Xinerama (as opposed to traditional X11 multiscreen), there is only one X screen. Use QDesktopWidget to query for information about Xinerama screens.

See also appDpiX() and setAppDpiY().

void QX11Info::setAppDpiY ( int screen, int ydpi ) [static]

Sets the vertical resolution of the given screen to the number of dots per inch specified by ydpi.

The screen argument is an X screen number. Be aware that if the user's system uses Xinerama (as opposed to traditional X11 multiscreen), there is only one X screen. Use QDesktopWidget to query for information about Xinerama screens.

See also appDpiY() and setAppDpiX().

void QX11Info::setAppTime ( unsigned long time ) [static]

Sets the X11 time to the value specified by time.

See also appTime() and setAppUserTime().

void QX11Info::setAppUserTime ( unsigned long time ) [static]

Sets the X11 user time as specified by time.

See also appUserTime() and setAppTime().

void * QX11Info::visual () const

Returns the current visual.

See also appVisual() and defaultVisual().

QX11Info & QX11Info::operator= ( const QX11Info & other )

Assigns other to this object and returns a reference to this object.

Publicité

Best Of

Actualités les plus lues

Semaine
Mois
Année
  1. Microsoft ouvre aux autres compilateurs C++ AMP, la spécification pour la conception d'applications parallèles C++ utilisant le GPU 22
  2. Les développeurs ignorent-ils trop les failles découvertes dans leur code ? Prenez-vous en compte les remarques des autres ? 17
  3. RIM : « 13 % des développeurs ont gagné plus de 100 000 $ sur l'AppWord », Qt et open-source au menu du BlackBerry DevCon Europe 0
  4. « Quelque chose ne va vraiment pas avec les développeurs "modernes" », un développeur à "l'ancienne" critique la multiplication des bibliothèques 12
  5. BlackBerry 10 : premières images du prochain OS de RIM qui devrait intégrer des widgets et des tuiles inspirées de Windows Phone 0
  6. Adieu qmake, bienvenue qbs : Qt Building Suite, un outil déclaratif et extensible pour la compilation de projets Qt 17
  7. Quelles nouveautés de C++11 Visual C++ doit-il rapidement intégrer ? Donnez-nous votre avis 10
Page suivante

Le Qt Developer Network au hasard

Logo

Compiler l'add-in Qt de Visual Studio

Le Qt Developer Network est un réseau de développeurs Qt anglophone, où ils peuvent partager leur expérience sur le framework. Lire l'article.

Communauté

Ressources

Liens utiles

Contact

  • Vous souhaitez rejoindre la rédaction ou proposer un tutoriel, une traduction, une question... ? Postez dans le forum Contribuez ou contactez-nous par MP ou par email (voir en bas de page).

Qt dans le magazine

Cette page est une traduction d'une page de la documentation de Qt, écrite par Nokia Corporation and/or its subsidiary(-ies). Les éventuels problèmes résultant d'une mauvaise traduction ne sont pas imputables à Nokia. Qt 4.7
Copyright © 2012 Developpez LLC. Tous droits réservés Developpez LLC. Aucune reproduction, même partielle, ne peut être faite de ce site et de l'ensemble de son contenu : textes, documents et images sans l'autorisation expresse de Developpez LLC. Sinon, vous encourez selon la loi jusqu'à 3 ans de prison et jusqu'à 300 000 E de dommages et intérêts. Cette page est déposée à la SACD.
Vous avez déniché une erreur ? Un bug ? Une redirection cassée ? Ou tout autre problème, quel qu'il soit ? Ou bien vous désirez participer à ce projet de traduction ? N'hésitez pas à nous contacter ou par MP !
 
 
 
 
Partenaires

Hébergement Web