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Thread: return-value and QDialog

  1. #1
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    Default return-value and QDialog

    Hello!

    I have a question about returning a value from a QDialog that ist about to be closed.

    An instance of InvoiceEdit is created first:

    Qt Code:
    1. InvoiceEdit *editInvoice = new InvoiceEdit();
    2.  
    3. if (editInvoice->exec())
    4. {
    5. ...
    6. }
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    This class contains a private function like

    Qt Code:
    1. int InvoiceEdit::saveInvoice()
    2. {
    3. ...
    4. this->close();
    5. return 0;
    6. }
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    Will the value be returned or is the instance of InvoiceEdit destroyed due to the call of close() ? And since the value is passed (if it is..) to another private function, when will the closeEvent kick in and destroy the instance? Are all functions completed before is is closed?

    Kind regrads,
    HomeR

  2. #2
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    Default Re: return-value and QDialog

    isn't there a way to print a note if it was retured (and another if not)? because if it should then I'm quite sure you can catch it somewhere and give some kind of output of its nature, eg. to console or some testfile. It seems to me a simle bug-fixing-searching problem.
    Szilvi

  3. #3
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    Default Re: return-value and QDialog

    Thanks for your answer. Yes, for sure it would be possible to solve this by try and error, but I am more interested in a more detailed answer about how long the life cycle of such elements is.

  4. #4
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    Default Re: return-value and QDialog

    well, you will se if you try...
    Szilvi

  5. #5
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    Default Re: return-value and QDialog

    I think calling done() with either accept or reject might be better than close().

    The dialog instance is hidden and processing stopped when you dismiss it but it will not be destroyed until you destroy it "delete editInvoice".
    You can read any public widget values or your own properties/variables etc until then

    regards

    Dave

  6. The following user says thank you to drave for this useful post:

    homerun4711 (16th February 2011)

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