              
QX11Info Class Reference |
| 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().
Assigns other to this object and returns a reference to this object.
Best Of
Actualités les plus lues
- « Quelque chose ne va vraiment pas avec les développeurs "modernes" », un développeur à "l'ancienne" critique la multiplication des bibliothèques 44
- Quelles nouveautés de C++11 Visual C++ doit-il rapidement intégrer ? Donnez-nous votre avis 10
- Créer des applications avec un style Metro avec Qt, exemples en QML et C++, un article du blog Digia traduit par Thibaut Cuvelier 0
- Partage de données explicite et implicite avec Qt, un article de Christophe Dumez traduit par Thibaut Cuvelier 0
- « Quelque chose ne va vraiment pas avec les développeurs "modernes" », un développeur à "l'ancienne" critique la multiplication des bibliothèques 44
- Microsoft ouvre aux autres compilateurs C++ AMP, la spécification pour la conception d'applications parallèles C++ utilisant le GPU 22
- Les développeurs ignorent-ils trop les failles découvertes dans leur code ? Prenez-vous en compte les remarques des autres ? 17
- RIM : « 13 % des développeurs ont gagné plus de 100 000 $ sur l'AppWord », Qt et open-source au menu du BlackBerry DevCon Europe 0
- BlackBerry 10 : premières images du prochain OS de RIM qui devrait intégrer des widgets et des tuiles inspirées de Windows Phone 0
- Quelles nouveautés de C++11 Visual C++ doit-il rapidement intégrer ? Donnez-nous votre avis 10
- Adieu qmake, bienvenue qbs : Qt Building Suite, un outil déclaratif et extensible pour la compilation de projets Qt 17
- Linus Torvalds : le "C++ est un langage horrible", en justifiant le choix du C pour le système de gestion de version Git 100
- Comment prendre en compte l'utilisateur dans vos applications ? Pour un développeur, « 90 % des utilisateurs sont des idiots » 229
- Quel est LE livre que tout développeur doit lire absolument ? Celui qui vous a le plus marqué et inspiré 96
- Apple cède et s'engage à payer des droits à Nokia, le conflit des brevets entre les deux firmes s'achève 158
- Nokia porte à nouveau plainte contre Apple pour violation de sept nouveaux brevets 158
- Quel est le code dont vous êtes le plus fier ? Pourquoi l'avez-vous écrit ? Et pourquoi vous a-t-il donné autant de satisfaction ? 83
- Le Draft final de la norme C++ 0X validé 181
Le blog Digia au hasard
Déploiement d'applications Qt Commercial sur les tablettes Windows 8
Communauté
Ressources
- 91 cours et tutoriels Qt
- F.A.Q. Qt : 200 questions et réponses
- 48 Qt Quarterly, 35 Qt Labs et 22 Qt DevNet en français
- 43 outils Qt
- 99 sources Qt
- 26 binaires Qt
- 6 livres Qt et 9 critiques
- La documentation de Qt 4.7 en français : 157 classes, 70 concepts et 24 modules
- 3 certifications Qt
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 4.6 | |
| 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 ! | ||
Copyright © 2000-2012 - www.developpez.com