Qt World Summit: Register Today!

Connecting a signal to another thread's slot

  • First of all im new to qt, so bare with me:)

    Im wondering which way is the right way to do it.

    I have a customized QWidget object and a QThread object & I need send SIGNALS between both;
    Signals&slots that reside inside UI I found quite comfortable to connect as it has a nice graphical tool(Qt C++ Signal Slot Editor) to do it. But as i got to the part where i needed a thread i was unable to connect with signals&slots that reside outside of UI. It seems editor will only see objects defined in ui_xxx.h file which is generated by uic program from the xxx.ui file. So its useless to edit the ui_xxx.h file as the changes will be lost.

    My question is:

    1. is there a way connect signals/slots between QWidget and QThread with Qt C++ Signal Slot Editor?
    2. if not what is the correct way to do it?

    Oh and I am using eclipse qt plugin...

    1. No. Use connect()s in your code :)
    2. Don't add slots to QThread subclasses. Avoid QThread subclassing if possible.

Log in to reply