Start the program at QT startup

The main principle is to modify the Windows registry. qt's qsettings provides the ability to access the INI and registry.

// Read the registry information to enable the program to start itself

void MainWindow::Readregedit(bool isAutoRun)

{

    QSettings *reg=new QSettings("HKEY_LOCAL_MACHINE//SOFTWARE//Microsoft"

                                 "//Windows//CurrentVersion//Run",QSettings::NativeFormat);

// Automatically run upon startup

    if (isAutoRun)

    {

        reg->setValue("app",QApplication::applicationFilePath());

    }

    else

    {

        reg->setValue("app","");

    }

}

 

// Start automatically upon startup. The main form is hidden

    if ( argc>1 && (argv[1]==(char *)"//min" ))

    {

        w.hide();

    }

    else

    {

        w.showNormal();

    }

PS: during startup, the small tray icon may not be displayed. You can use the icon in the resource file,

As a small tray, this can solve this problem.