Running Qtopia Core ApplicationsA Qtopia Core application requires a server application to be running, or to be the server application itself. Any Qtopia Core application can be the server application by constructing the QApplication object with the QApplication::GuiServer type, or by running the application with the -qws command line option. Applications can run using both single and multiple displays, and various command line options are available. Note that this document assumes that you either are using the Qtopia Core's Virtual Framebuffer or that you are running Qtopia Core using the VNC protocol, or that you have the Linux framebuffer configured correctly and that no server process is running. (To test that the Linux framebuffer is set up correctly, use the program provided by the Testing the Linux Framebuffer document.) Using a Single DisplayTo run the application using a single display, change to a Linux console and select an application to run, e.g. demos/textedit. Run the application with the -qws option: cd path/to/Qtopia/Core/demos/textedit ./textedit -qws
Additional applications can be run as clients, i.e., by running these applications without the -qws option they will connect to the existing server as clients. You can exit the server application at any time using Ctrl+Alt+Backspace. Using Multiple DisplaysQtopia Core also allows multiple displays to be used simultaneously. There are two ways of achieving this: Either run multiple Qtopia Core server processes, or use Qtopia Core's ready-made Multi screen driver. When running multiple server processes, the screen driver (and display number) must be specified for each process using the -display command line option or by setting the QWS_DISPLAY environment variable. For example: ./myfirstserverapplication -qws -display "transformed:rot90:1" ./mysecondserverapplication -qws -display "QVFb:2" See the display management documentation for more details on how to specify a screen driver. Note that you must also specify the display (i.e., server process) when starting client applications: ./myclientapplication -display "QVFb:2" There is no way of moving a client from one display to another when running multiple server processes. Using the Multi screen driver, on the other hand, applications can easiliy be moved between the various screens. The Multi screen driver can be specified just like any other screen driver by using the -display command line option or by setting the QWS_DISPLAY environment variable. For example: ./myserverapplication -qws -display "Multi: QVFb:0 QVFb:1:offset=0,0 VNC:offset=640,0 :2" See the display management documentation for details regarding arguments. Command Line Options
|
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 4.3 | |
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