Pass variable value from Dialog to MainWindow

[mrjj]

Hi
Its a bit odd as you seem to set BaudRate in
void ImpostazioniSP::on_pushButton_OK_clicked()
so in
QString ImpostazioniSP::getBaudRate() {
qDebug() << "BaudRate:" << BaudRate;
return BaudRate;
}

does it show the value you set with comboBox_BaudRate ?

[SGaist]

Why are you using that switch ? You already have the baud rate as a string in the combo box.

As already suggest, returning the combo box selected text is shorter and less error prone.

[TheCipo76]

@mrjj Yes:
in dialog qdebug print BaudRate 9600
in mainwindow qdebug print 115200 both Before and After

[TheCipo76]

@SGaist OK, i've fixed it as you suggested

[mrjj]

@TheCipo76
Hmm that seems almost impossible :)
I must be missing something.
So function seems to return expected result.
Just to 100% sure, please try

qDebug() << "Before" << BaudRate;
ImpostazioniSP SetImp (this, BaudRate, DataBits, Parity);
SetImp.setModal(true);
if ( SetImp.exec() == QDialog::Accepted ) {
    qDebug() << "from func" << SetImp.getBaudRate();
}

and tell what "from func" says ?

[TheCipo76]

@mrjj

Before "115200" (mainwindow)
BaudRate: "9600" (dialog)

"from func" was not showed

i've modify you code:

qDebug() << "Before" << BaudRate;
    ImpostazioniSP SetImp (this, BaudRate, DataBits, Parity);
    SetImp.setModal(true);
    if ( SetImp.exec() == QDialog::Accepted ) {
        BaudRate=SetImp.getBaudRate();
    }
    qDebug() << "from func" << SetImp.getBaudRate();

and this is result:

Before "115200"
BaudRate: "9600"
BaudRate: "9600"
from func "9600"

[SGaist]

What is stranger is that @mrjj's code is mostly the same as mine :-D

Which means that you didn't accept the dialog properly. Are you clicking on some OK button the closes it ? Or are you just clicking the X button ?

[TheCipo76]

@SGaist i close the dialog as ultimate instruction of OK pushbutton

[SGaist]

You're calling close, not accept.

[TheCipo76]

@SGaist i have called accept before close

this is qdebug message:

Before "115200"
BaudRate: "9600"
BaudRate: "9600"
BaudRate: "9600"
from func "9600"

why show BaudRate: "9600" 3 times???

[TheCipo76]

@SGaist OK, finally works!!! Thanks to all

[SGaist]

There's no need to call close, accept will close the dialog for you.

Likely because you are calling getBaudRate in several places.

[mrjj]

Ah, i was fooled by
qDebug() << "After" << BaudRate;
as its inside the if for Accepted so i assumed that was in order :)
Good found!

[TheCipo76]

Thanks to all!!