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Problem with program that performs multiple processes.

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pythonpython3pyqtpyqt4pyuicthreadthreadingthreadsmultithreadsguiqtdesigner
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  • T Offline
    T Offline
    Tas-sos
    wrote on last edited by
    #1

    I have a program ( in Python3 ) that should run different threads.
    In this program I tried to create a graphical interface with the QtDesigner 4 program.

    So I added a "Text Edit" object in the graphic interface.

    The problem I have, occurs when i ".append" text to "Text Edit" object.

    I get this error:
    QObject::connect: Cannot queue arguments of type 'QTextCursor'
    (Make sure 'QTextCursor' is registered using qRegisterMetaType().)

    I have read that it is not allowed to handle the GUI from other processes .. but now my problem is I can not avoid it ..

    So that I could handle this problem?

    Thank you in advance for your time :)

    (Sorry for my bad english.)

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    • Y Offline
      Y Offline
      yoavmil
      wrote on last edited by
      #2

      the Qt way for threading and GUI, is using signal and slots.
      look here for an example.

      regarding QObject::connect: Cannot queue arguments of type 'QTextCursor', you shold actually call somewhere early in you program,
      qRegisterMetaType(QTextCursor)
      also, look here

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      • T Offline
        T Offline
        Tas-sos
        wrote on last edited by
        #3

        How can i create my signal for text edit with python3 ?
        With as many ways i tried, but I did not succeed .. :(

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