×
Namespaces

Variants
Actions
Revision as of 08:29, 26 July 2012 by hamishwillee (Talk | contribs)

Working with QSystemInfo - System Information API - Part 2

From Nokia Developer Wiki
Jump to: navigation, search
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

108 page views in the last 30 days.

Was this page helpful?

Your feedback about this content is important. Let us know what you think.

 

Thank you!

We appreciate your feedback.

×