Restoring previous session of an application
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Hello friends,I am developing an mobile application where i will require to perform some operations which will be represented in from of colors,suppose i set colors for pushbutton,now when i close my application,and again open it.I want to restore the same session,i mean the colors which i had set before closing the application should remain as it is..So may i know how to do this .
regards
imrrk -
Thanks gerolf,I will go through it,But i have question to u...As we have system registry on Windows, and in XML preferences files on Mac OS X. On Unix systems use INI text files.So in similar way whether we have registry for symbian also? and what it is called..?
regards
imrrk -
Nothing a little Google search won't tell you, I think? See "this":http://wiki.forum.nokia.com/index.php/TSQ001327_-_Qt_and_S60_settings_management_comparison, for example.
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Hello everyone,I have tried something with regards to Qsettings,I request you to please help me out and tell me whether i am proceeding in correct direction.
@#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QSettings>
#include <QtCore/QCoreApplication>MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent), ui(new Ui::MainWindow)
{
ui->setupUi(this);
writeSettings();
readSettings();
}MainWindow::~MainWindow()
{
delete ui;
}function to set the colors for the pushbutton..
void MainWindow::on_click_clicked()
{//three pushbuttons ui->pushButton->setStyleSheet("{color: red;}"); ui->pushButton_2->setStyleSheet("{background-color: green;}"); ui->pushButton_3->setStyleSheet("{background-color: yellow;}");}
void MainWindow::writeSettings()
{
QSettings settings("Mycompany","Myapp");
settings.beginGroup(MainWindow);
settings.setValue("color",color());
settings.endGroup();}
void MainWindow::readSettings()
{
QSettings settings("Mycompany","Myapp");
settings.beginGroup(MainWindow);
color(settings.value("color",QColor("red")));
}@regards
imrrk -
hey vinb,thanks for ur help,I didnt get you will u please ellaborate..Actually as you see the code at first run I will set the background color on each of the 3 pushbuttons,and close the appplication and again when i open the application ,i should get the same state i.e the colors should be already present
regards
imrrk -
Hello friends,this is a code snippet from docs,and i have some doubts here,can anybody explains me what is the 3 statement doing
@ QSettings settings("MySoft", "Star Runner");
QColor color = palette().background().color();
settings.setValue("DataPump/bgcolor", color);@regards
imrrk -
Hello friends,I have written the below code to save my settings using qsettings and when i again open it,i should get the same state,but the values are not saved,,please help me out in this regard..
@#include <QtCore/QCoreApplication>
#include <QtGui/QCloseEvent>
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent), ui(new Ui::MainWindow)
{
ui->setupUi(this);// readSettings();
// writeSettings();}
MainWindow::~MainWindow()
{
delete ui;
}void MainWindow::on_click_clicked()
{
ui->pushButton->setStyleSheet("color: red;");
ui->pushButton_2->setStyleSheet("background-color: green;");
ui->pushButton_3->setStyleSheet("background-color: yellow;");
}
void MainWindow::writeSettings()
{
QSettings settings("Moose Soft", "Clipper");settings.beginGroup("pushbutton");
settings.setValue("size", size());
settings.setValue("pos", pos());
QColor r("red");
r.name();
settings.setValue("color",r.name());
settings.endGroup();
}void MainWindow::readSettings()
{
QSettings settings("Moose Soft", "Clipper");settings.beginGroup("pushbutton");
resize(settings.value("size", QSize(400, 400)).toSize());
move(settings.value("pos", QPoint(200, 200)).toPoint());
QColor r(settings.value("color").toString());
settings.endGroup();
}
void MainWindow::closeEvent(QCloseEvent * event)
{
if(on_exit_clicked())
{
writeSettings();
event->accept();
}
else
event->ignore();}
bool MainWindow::on_exit_clicked()
{
writeSettings();
exit(0);
}@regards
imrrk -
[quote author="imrrk" date="1306306497"]
@#include <QtCore/QCoreApplication>
#include <QtGui/QCloseEvent>
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent), ui(new Ui::MainWindow)
{
ui->setupUi(this);// readSettings();
// writeSettings();}
MainWindow::~MainWindow()
{
delete ui;
}void MainWindow::on_click_clicked()
{
ui->pushButton->setStyleSheet("color: red;");
ui->pushButton_2->setStyleSheet("background-color: green;");
ui->pushButton_3->setStyleSheet("background-color: yellow;");
}
void MainWindow::writeSettings()
{
QSettings settings("Moose Soft", "Clipper");settings.beginGroup("pushbutton");
settings.setValue("size", size());
settings.setValue("pos", pos());
QColor r("red");
r.name();
settings.setValue("color",r.name());
settings.endGroup();
}void MainWindow::readSettings()
{
QSettings settings("Moose Soft", "Clipper");settings.beginGroup("pushbutton");
resize(settings.value("size", QSize(400, 400)).toSize());
move(settings.value("pos", QPoint(200, 200)).toPoint());
QColor r(settings.value("color").toString());
settings.endGroup();
}
void MainWindow::closeEvent(QCloseEvent * event)
{
if(on_exit_clicked())
{
writeSettings();
event->accept();
}
else
event->ignore();}
bool MainWindow::on_exit_clicked()
{
writeSettings();
exit(0);
}@regards
imrrk[/quote]Hi imrrk,
Where do you call readSettings()? It is commented out at the constructor.
Regards,
Leon -
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Do you really expect being taken serious when crying like a childish kiddie? Come on, get serious!
-And look at your code if it is ever able to do what you expect it to do!-
-Or better: Use a debugger, set breakpoints and step through the code. You will find the error yourself then within seconds.-
-Hopefully nobody will tell you the solution here, as it has no learning effect.-
EDIT: wrong read of code, sorry