<![CDATA[Send Var to Main thread]]>Hi
How can I send Variable or data from worker Thread (or other Thread implementation ) to Gui (Main Thread)?
I do vice versa (Gui Thread to other thread ) with signal/slot.

]]>https://forum.qt.io/topic/80231/send-var-to-main-threadRSS for NodeSun, 20 Sep 2026 17:58:34 GMTMon, 12 Jun 2017 11:39:16 GMT60<![CDATA[Reply to Send Var to Main thread on Mon, 12 Jun 2017 11:52:32 GMT]]>@Alexanov There is no difference whether from main thread to other thread or from other thread to main thread.

]]>https://forum.qt.io/post/398981https://forum.qt.io/post/398981Mon, 12 Jun 2017 11:52:32 GMT<![CDATA[Reply to Send Var to Main thread on Mon, 12 Jun 2017 11:56:24 GMT]]>@Alexanov
Thats exactly the way to do it:

signals:
   void sendData(QVariant value);

...
slots:
   void getData(QVariant value);


//connect the 2

connect(ObjectInThread1, &myThreadedClass1::sendData, ObjectInThread2, &mainThreadClass::getData, Qt::QueuedConnection);

the with5th paramter is optional, but either leave it open aka Qt::AutoConnection or write Qt::QueuedConnection

]]>https://forum.qt.io/post/398978https://forum.qt.io/post/398978Mon, 12 Jun 2017 11:56:24 GMT