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Thread: how to kill parent widget?

  1. #1
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    Default how to kill parent widget?

    My application calls another widget from the current and i never need the previous widget.
    So i want to kill the parent widget to avoid memory leak.

    I want to solve this problem as my widgets chains a lot.

    Can anybody help?

    Mahe2310

  2. #2
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    Default Re: how to kill parent widget?

    Qt Code:
    1. delete pWidget;
    To copy to clipboard, switch view to plain text mode 
    a life without programming is like an empty bottle

  3. #3
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    Default Re: how to kill parent widget?

    Quote Originally Posted by zlatko
    Qt Code:
    1. delete pWidget;
    To copy to clipboard, switch view to plain text mode 

    If i am reusing it again. then ?

    pWidget name should be a global variable.. Right???
    that means all the widgets should be global...

    But if we are declaring these widget together in a header file and calls the header file by each of the file,
    then redeclaration error is generated.

    If i declare them static in the headers then once we delete it will not be created again.


    Mahe2310

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    Default Re: how to kill parent widget?

    Try setting Qt::WA_DeleteOnClose attribute or invoking QObject::deleteLater(), but make sure that "parent" widget is not a parent of other windows, because it will delete them also. Another alternative is to turn your windows into singletons and just hide them when you don't need them.

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