Qt QML app in new thread

Damian7546

Hi,

I write a simple application in Qt logic and QML application. SystemConstroller is a class registered in QML. Among other things, I use SLOT and SIGNAL mechanism like below:

SystemController::SystemController(QObject *parent)
    : QObject{parent}
{
    C56SdkApp *c56SdkApp = new C56SdkApp();
    QObject::connect(this, SIGNAL(text2PrintChanged(QString)), c56SdkApp, SLOT(printText(QString)));
}

But when I try pass my object to new thread look like the mechanism SIGNAL and SLOT Stops working ,because I do not "communication" between my classes I should do something more to pass obiect to new thread?

SystemController::SystemController(QObject *parent)
    : QObject{parent}
{
    QThread *threadPrinter = new QThread();
    C56SdkApp *c56SdkApp = new C56SdkApp();
   c56SdkApp->moveToThread(threadPrinter);
    QObject::connect(this, SIGNAL(text2PrintChanged(QString)), c56SdkApp, SLOT(printText(QString)));
}

SGaist

Didn't you forget to start the thread ?

SGaist

Hi,

What exactly is C56SdkApp ?

Damian7546

@SGaist said in Qt QML app in new thread:

What exactly is C56SdkApp ?

It is a class to communicate with printer.

SGaist

Didn't you forget to start the thread ?

Damian7546

I really forgot, my mistake. Thanks!