C++/Qt 5.7 - QDialog to QMainWindow - signal not connecting to slot

[jimbo]

Hello Lesiok,

Thanks for your response.

Is the init process is the constructor ?

No.

noobsForm::noobsForm(QStringList passedDataList, QString fileName,
                     QWidget *parent) : QDialog(parent),
                     ui(new Ui::noobsForm)
{
    ...
    ...
    initInst();
}
 
void noobsForm::initInst()
{
    ...
    ...
    delay(1000); //process events
    qDebug() << "passed letter" << (driveLetter + ":");
    emit doGetFileCount(driveLetter + ":");
    ...
    ...
}

noobsForm::noobsForm(QStringList passedDataList, QString fileName,
                     QWidget *parent) : QDialog(parent),
                     ui(new Ui::noobsForm)
{
    ...
    ...
    initInst();
}

void noobsForm::initInst()
{
    ...
    ...
    delay(1000); //process events
    qDebug() << "passed letter" << (driveLetter + ":");
    emit doGetFileCount(driveLetter + ":");
    ...
    ...
}

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[Lesiok]

How not like yes ? initInst() is called from constructor. Signals are connected after them so what are you surprised that it does not work ?
Maybe you should first learn the basics of C++.