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Working with QSystemInfo - System Information API - Part 2

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{{ArticleMetaData <!-- v1.2 -->
 +
|sourcecode= [[Media:SystemFeatureInfo.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 -->
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|translated-by= <!-- [[User:XXXX]] -->
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|translated-from-title= <!-- Title only -->
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|translated-from-id= <!-- Id of translated revision -->
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|review-by= <!-- After re-review: [[User:username]] -->
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|review-timestamp= <!-- After re-review: YYYYMMDD -->
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|update-by= <!-- After significant update: [[User:username]]-->
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|update-timestamp= <!-- After significant update: YYYYMMDD -->
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|creationdate= 20100308
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|author= [[User:Kiran10182]]
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}}
 
[[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
 
|-
 
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|'''Category''' || Qt for Symbian
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|'''Category''' || Qt
 
|'''Subcategory''' || Qt Mobility API
 
|'''Subcategory''' || Qt Mobility API
 
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|-
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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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= 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 1]]
 
* [[Working with QSystemInfo - System Information API - Part 1]]

Revision as of 08:29, 26 July 2012

Article Metadata
Code ExampleCompatibility
Platform(s):
Symbian
Article
Created: kiran10182 (08 Mar 2010)
Last edited: hamishwillee (26 Jul 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, QLabel, QComboBox,


Tip.pngTip: 


Contents

Overview

This is a part 2 of the QSystemInfo API which is a part of the System Information API from Qt Mobility project.


What is covered in QSystemInfo API Part 2

  • It is a part of the System Information API.
  • This article covers information about
    • Available features of the device
    • Version information of the OS
    • Current firmware information of the device


Capabilities required

  • ReadDeviceData


UI design (.ui file)

SystemFeatureInfo UI.png


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
  • Add required capability in .pro file as shown below:
symbian:TARGET.CAPABILITY = ReadDeviceData


Implementing QSystemInfo API

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

Header file

#ifndef SYSTEMFEATUREINFO_H
#define SYSTEMFEATUREINFO_H
 
#include <QtGui/QWidget>
#include "ui_SystemFeatureInfo.h"
#include <qsysteminfo.h>
 
using namespace QtMobility;
class SystemFeatureInfo : public QWidget
{
Q_OBJECT
 
public:
SystemFeatureInfo(QWidget *parent = 0);
~SystemFeatureInfo();
 
public slots:
void checkFeatureAvailability(int aIndex);
void listFirmwareInformation();
void resetAllFields();
 
private:
Ui::SystemFeatureInfo ui;
QSystemInfo* sysInfo;
};
 
#endif // SYSTEMFEATUREINFO_H


Source file

#include "SystemFeatureInfo.h"
 
SystemFeatureInfo::SystemFeatureInfo(QWidget *parent)
: QWidget(parent), sysInfo(NULL)
{
ui.setupUi(this);
sysInfo = new QSystemInfo();
 
QObject::connect(ui.featureComboBox,
SIGNAL(currentIndexChanged(int)),
this,
SLOT(checkFeatureAvailability(int)));
QObject::connect(ui.listVersionInfoButton,
SIGNAL(clicked()),
this,
SLOT(listFirmwareInformation()));
QObject::connect(ui.resetButton,
SIGNAL(clicked()),
this,
SLOT(resetAllFields()));
}
 
SystemFeatureInfo::~SystemFeatureInfo()
{
delete sysInfo;
sysInfo = NULL;
}
 
void SystemFeatureInfo::checkFeatureAvailability(int aIndex)
{
ASSERT(aIndex >=0 && aIndex <=13);
 
if(! aIndex)
{
ui.label->clear();
return;
}
 
bool val = sysInfo->hasFeatureSupported((QSystemInfo::Feature)(aIndex-1));
if(val)
{
ui.label->setText("Available");
}
else
{
ui.label->setText("Not available");
}
}
 
void SystemFeatureInfo::listFirmwareInformation()
{
if(sysInfo)
{
QString os = sysInfo->version(QSystemInfo::Os);
ui.OSlabel->setText(sysInfo->version(QSystemInfo::Os));
ui.qtLabel->setText(sysInfo->version(QSystemInfo::QtCore));
ui.firmwareLabel->setText(sysInfo->version(QSystemInfo::Firmware));
}
}
void SystemFeatureInfo::resetAllFields()
{
ui.featureComboBox->setCurrentIndex(0);
ui.label->clear();
ui.OSlabel->clear();
ui.qtLabel->clear();
ui.firmwareLabel->clear();
}


Output

SystemFeatureInfo device.jpg


Useful functions

  • bool hasFeatureSupported(QSystemInfo::Feature feature);
  • QString version(QSystemInfo::Version type, const QString & parameter = QString());

Keywords

Headers

  • #include <qsysteminfo.h>

Classes

  • QSystemInfo
  • QString
  • QStringList
  • QButton
  • QLabel
  • QComboBox

Example Application


Related articles

Reference links

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