Restoring previous session of an application
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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