QComboBox* comboBox = new QComboBox(parent); comboBox->addItem("Option 1"); comboBox->addItem("Option 2"); comboBox->addItem("Option 3");
QObject::connect(comboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(mySlot(int)));
QString selectedOption = comboBox->currentText();This returns a QString of the currently selected option in the QComboBox. The package library for QComboBox is Qt, which is an extensive C++ cross-platform development framework that includes various tools and classes for GUI programming, network and socket programming, database connectivity, multi-threading, etc. It is developed and maintained by the Qt Company.