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Working with QSystemInfo - System Information API - Part 1

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{{ArticleMetaData <!-- v1.2 -->
 +
|sourcecode= [[Media:SystemInformation part1.zip]]
 +
|installfile= <!-- Link to installation file (e.g. [[Media:The Installation File.sis]]) -->
 +
|devices= <!-- Devices tested against - e.g. ''devices=Nokia 6131 NFC, Nokia C7-00'') -->
 +
|sdk= <!-- SDK(s) built and tested against (e.g. [http://linktosdkdownload/ Qt SDK 1.1.4]) -->
 +
|platform= <!-- Compatible platforms - e.g. Symbian^1 and later, Qt 4.6 and later -->
 +
|devicecompatability= <!-- Compatible devices e.g.: All* (must have internal GPS) -->
 +
|dependencies= <!-- Any other/external dependencies e.g.: Google Maps Api v1.0 -->
 +
|signing= <!-- Signing requirements - empty or one of: Self-Signed, DevCert, Manufacturer -->
 +
|capabilities= <!-- Capabilities required by the article/code example (e.g. Location, NetworkServices. -->
 +
|keywords= <!-- APIs, classes and methods (e.g. QSystemScreenSaver, QList, CBase -->
 +
|language= <!-- Language category code for non-English topics - e.g. Lang-Chinese -->
 +
|translated-by= <!-- [[User:XXXX]] -->
 +
|translated-from-title= <!-- Title only -->
 +
|translated-from-id= <!-- Id of translated revision -->
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|review-by= <!-- After re-review: [[User:username]] -->
 +
|review-timestamp= <!-- After re-review: YYYYMMDD -->
 +
|update-by= <!-- After significant update: [[User:username]]-->
 +
|update-timestamp= <!-- After significant update: YYYYMMDD -->
 +
|creationdate= 20100308
 +
|author= [[User:Kiran10182]]
 +
}}
 
[[Category:Qt Mobility]]
 
[[Category:Qt Mobility]]
 
{|style="background:#eceff2" width="660px" border="1" cellpadding="5" cellspacing="0"  
 
{|style="background:#eceff2" width="660px" border="1" cellpadding="5" cellspacing="0"  
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|'''Tested on devices''' || Nokia 5800 xPressMusic
 
|'''Tested on devices''' || Nokia 5800 xPressMusic
 
|-
 
|-
|'''Category''' || Qt for Symbian
+
|'''Category''' || Qt
 
|'''Subcategory''' || Qt Mobility API
 
|'''Subcategory''' || Qt Mobility API
 
|-
 
|-
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{{Tip|<b></b>
 
{{Tip|<b></b>
* Please read this article before moving forward: [[Setting up environment for Qt Mobility API]]
+
* Please read this article before moving forward: [[Archived:Setting up environment for Qt Mobility API]]
 
* Setup Carbide.c++ IDE as explained in this article: [[Working with Carbide.c++ IDE for Qt Mobility APIs]]
 
* Setup Carbide.c++ IDE as explained in this article: [[Working with Carbide.c++ IDE for Qt Mobility APIs]]
 
}}
 
}}
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= Project configuration file (.Pro file) =
 
= Project configuration file (.Pro file) =
 
* Add the Qt Mobility project configuration option in the .Pro file as shown below
 
* Add the Qt Mobility project configuration option in the .Pro file as shown below
<code cpp>
+
<code cpp-qt>
 
CONFIG += mobility
 
CONFIG += mobility
 
MOBILITY += systeminfo
 
MOBILITY += systeminfo
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* Add Qt-specific configuration options in .pro file as shown below
 
* Add Qt-specific configuration options in .pro file as shown below
<code cpp>
+
<code cpp-qt>
 
QT += network
 
QT += network
 
</code>
 
</code>
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= Implementing QSystemInfo API =
 
= Implementing QSystemInfo API =
 
* QSystemInfo API is a part of the QtMobility namespace. So declare the QtMobility namespace as shown below:
 
* QSystemInfo API is a part of the QtMobility namespace. So declare the QtMobility namespace as shown below:
<code cpp>
+
<code cpp-qt>
 
using namespace QtMobility;
 
using namespace QtMobility;
 
</code>
 
</code>
  
 
== Header file==
 
== Header file==
<code cpp>
+
<code cpp-qt>
 
#ifndef SYSTEMINFORMATION_H
 
#ifndef SYSTEMINFORMATION_H
 
#define SYSTEMINFORMATION_H
 
#define SYSTEMINFORMATION_H
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== Source file ==
 
== Source file ==
<code cpp>
+
<code cpp-qt>
 
#include "SystemInformation.h"
 
#include "SystemInformation.h"
  
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= Related articles =  
 
= Related articles =  
 
* [[Getting started with Qt Mobility APIs]]
 
* [[Getting started with Qt Mobility APIs]]
* [[Setting up environment for Qt Mobility API]]
+
* [[Archived:Setting up environment for Qt Mobility API]]
 
* [[Working with Carbide.c++ IDE for Qt Mobility APIs]]
 
* [[Working with Carbide.c++ IDE for Qt Mobility APIs]]
 
* [[Working with QSystemInfo - System Information API - Part 2]]
 
* [[Working with QSystemInfo - System Information API - Part 2]]
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* [http://developer.qt.nokia.com/wiki/Category:Qt_Labs_Projects Qt Mobility API]
 
* [http://developer.qt.nokia.com/wiki/Category:Qt_Labs_Projects Qt Mobility API]
 
* [http://qt.nokia.com/developer/qt-roadmap New Qt APIs Beta - Mobility Project]
 
* [http://qt.nokia.com/developer/qt-roadmap New Qt APIs Beta - Mobility Project]
* SDK help[[Category:Code Examples]]
+
* SDK help[[Category:Code Examples]][[Category:MeeGo Harmattan]] [[Category:Symbian]]

Latest revision as of 04:23, 11 October 2012

Article Metadata
Code ExampleCompatibility
Platform(s):
Symbian
Article
Created: kiran10182 (08 Mar 2010)
Last edited: hamishwillee (11 Oct 2012)
ID Creation date 8-March-2010
Platform S60 3rd Edition, FP1, FP2

S60 5th Edition

Tested on devices Nokia 5800 xPressMusic
Category Qt Subcategory Qt Mobility API


Keywords (APIs, classes, methods, functions): QSystemInfo, QString, QStringList, QButton


Tip.pngTip: 


Contents

[edit] Overview

This is a part 1 of the QSystemInfo API which is a part of the System Information API from Qt Mobility project.

[edit] What is covered in QSystemInfo API Part 1

  • It is a part of the System Information API.
  • This article covers information about
    • Available languages in the device
    • Current language of the device
    • Current country code of the device


[edit] Capabilities required

  • None


[edit] UI design (.ui file)

QSystemInfo-UI Part1.png


[edit] Project configuration file (.Pro file)

  • Add the Qt Mobility project configuration option in the .Pro file as shown below
CONFIG += mobility
MOBILITY += systeminfo
  • Add Qt-specific configuration options in .pro file as shown below
QT += network


[edit] Implementing QSystemInfo API

  • QSystemInfo API is a part of the QtMobility namespace. So declare the QtMobility namespace as shown below:
using namespace QtMobility;

[edit] Header file

#ifndef SYSTEMINFORMATION_H
#define SYSTEMINFORMATION_H
 
#include <QtGui/QWidget>
#include "ui_SystemInformation.h"
#include <qsysteminfo.h>
 
using namespace QtMobility;
 
class SystemInformation : public QWidget
{
Q_OBJECT
 
public:
SystemInformation(QWidget *parent = 0);
~SystemInformation();
 
public slots:
void displayCurrentCountryCode();
void displayCurrentLanguage();
void displayAvailableCountryCodes();
void resetAllFields();
 
private:
Ui::SystemInformation ui;
QSystemInfo* sysInfo;
};
 
#endif // SYSTEMINFORMATION_H


[edit] Source file

#include "SystemInformation.h"
 
SystemInformation::SystemInformation(QWidget *parent)
: QWidget(parent), sysInfo(NULL)
{
ui.setupUi(this);
sysInfo = new QSystemInfo();
 
QObject::connect(ui.curLanguageButton,
SIGNAL(clicked()),
this,
SLOT(displayCurrentLanguage()));
QObject::connect(ui.countryCodeButton,
SIGNAL(clicked()),
this,
SLOT(displayCurrentCountryCode()));
QObject::connect(ui.availableLanguagesButton,
SIGNAL(clicked()),
this,
SLOT(displayAvailableCountryCodes()));
QObject::connect(ui.resetButton,
SIGNAL(clicked()),
this,
SLOT(resetAllFields()));
}
 
SystemInformation::~SystemInformation()
{
delete sysInfo;
sysInfo = NULL;
}
 
void SystemInformation::displayCurrentCountryCode()
{
if(sysInfo)
{
QString str = sysInfo->currentCountryCode();
ui.countryCodeLabel->setText(str);
}
}
 
void SystemInformation::displayCurrentLanguage()
{
if(sysInfo)
{
QString str = sysInfo->currentLanguage();
ui.languageLabel->setText(str);
}
}
 
void SystemInformation::displayAvailableCountryCodes()
{
if(sysInfo)
{
QStringList list = sysInfo->availableLanguages();
ui.languageComboBox->addItems(list);
}
}
 
void SystemInformation::resetAllFields()
{
if(sysInfo)
{
ui.languageLabel->clear();
ui.countryCodeLabel->clear();
ui.languageComboBox->clear();
}
}


[edit] Output

QSystemInfo-part1.jpg


[edit] Useful functions

  • QStringList availableLanguages();
  • QString currentCountryCode();
  • QString currentLanguage();

[edit] Keywords

[edit] Headers

  • #include <qsysteminfo.h>

[edit] Classes

  • QSystemInfo
  • QString
  • QStringList
  • QButton

[edit] Example Application


[edit] Related articles

[edit] Reference links

This page was last modified on 11 October 2012, at 04:23.
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