Restart aplication with some proprieties from the previous

[SamuelNLP]

I have a Qt application in which I want to put a restart button, but when it restarts I want it to automatically reconnect with my bluetooth device. here's my code:

void gui::restartapp()
{
    int index_combo;
 
    index_combo= ui->devices_infile->currentIndex();
 
    QProcess::startDetached(QApplication::applicationFilePath());
    exit(12);
 
    char *dest;
    dest = addr_infile[index_combo];
 
    sock = linkup_directmain(dest, sock);
 
    if (sock != 0 && sock >0)
    {
        ui->console_1->setText("Connected to:");
        ui->console_2->setText(name_infile[index_combo]);
    }
 
    else if (sock == -1)
    {
        ui->console_1->setText("Error connecting");
        ui->console_2->setText("Check device status");
    }
}

void gui::restartapp()
{
    int index_combo;

    index_combo= ui->devices_infile->currentIndex();

    QProcess::startDetached(QApplication::applicationFilePath());
    exit(12);

    char *dest;
    dest = addr_infile[index_combo];

    sock = linkup_directmain(dest, sock);

    if (sock != 0 && sock >0)
    {
        ui->console_1->setText("Connected to:");
        ui->console_2->setText(name_infile[index_combo]);
    }

    else if (sock == -1)
    {
        ui->console_1->setText("Error connecting");
        ui->console_2->setText("Check device status");
    }
}

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but it only restarts. any idea?

Thank you in advance.

[droneone]

Having no idea what the rest of your code does, it's kind of impossible to tell you what is wrong.

However, consider a pattern:

(operating)
- Write current state to a file

(starting)
- If a state file exists, read it.
- If the state inside of that file indicates to do something, do it.

[SamuelNLP]

I got it to work with `QSettings`. I'll publish it later in case someone else needs it. It can work with a file as well as you say.