QT - How to get SIGNAL "currentIndexChanged" from QVector<QComboBox*> - c++

Question

I want to get QString text from selected QComboBox. When I selected an index on a QComboBox, I want to get QString from the selected index, after I clicked the desired index on a QcomboBox.
I have researched about this,
Qt QCombobox currentIndexChanged signal
but have not found a way to solve it,
QVector<QComboBox*> cboxes;
for (int i =0; i< 40 ; i++)
{
QComboBox *box = new QComboBox();
cboxes.append(box);
}
for(int i = 0; i < 40; i++)
{
connect(cboxes[i], SIGNAL(currentIndexChanged(const QString &text)), this, SLOT(comboBoxAdjusted_Changed(QString)));
}
comboBoxAdjusted_Changed function
void DialogSettings::comboBoxAdjusted_Changed(QString text)
{
std::cout << text.toStdString() << endl;
}
I have Try, but everytime i change the combobox index, It isn't give output.
for (int i =0; i< 40 ; i++)
{
connect(cboxes[i], static_cast<void(QComboBox::*)(const QString &)>(&QComboBox::currentIndexChanged),
[=](const QString &text){
std::cout << text.toStdString() << endl;
});
What should I do?

Answer 1

I see signal syntax is missing the function input argument.
Below are two valid signals for currentIndexChanged
void currentIndexChanged(int index)
void currentIndexChanged(const QString &text)
If you have to handle index try below for your case.
for(int i = 0; i < 40; i++)
{
connect(cboxes[i], static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged),[=](int index){ /* YOUR CODE */ });
}