can't show my QDialog

[sincnarf]

Hello!

I created a custom dialog and here's how I use it.

IADFUQParameterDialog dialog = new IADFUQParameterDialog(this);

IADFUQParameterDialog dialog = new IADFUQParameterDialog(this);

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but on compile has the error
mainwindow.cpp:2222: error: initializing temporary from result of 'IADFUQParameterDialog::IADFUQParameterDialog(QWid get*)'

so I try to use this instead

IADFUQParameterDialog dialog(this); dialog.show();

IADFUQParameterDialog dialog(this); dialog.show();

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and there's no error. But the dialog shows only when I call a message box

[sincnarf]

sorry, tried to use dialog.exec() and it showed... Now How do get the values from my Dialog to be used by the widget that called dialog.exec()?

[wysota]

You need to provide getter methods in the dialog class to do that. Or you can make the ui for the dialog public, but this is really not advised.

[high_flyer]

but on compile has the error
mainwindow.cpp:2222: error: initializing temporary from result of 'IADFUQParameterDialog::IADFUQParameterDialog(QWid get*)'

When allocating on the heap (using new) you have to use pointer:

IADFUQParameterDialog *dialog = new IADFUQParameterDialog(this);

IADFUQParameterDialog *dialog = new IADFUQParameterDialog(this);

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And if you need to access this pointer in other places as well, you will want to make it a member variable.

sorry, tried to use dialog.exec() and it showed...

Well, the difference between show() and exec() is the modality mode.
But both should work.
Have a look at the faqs for "I have created a widget/dialog and it is not visible when I call show(). Why?"