New answers tagged plugins
You have to use signals. Here you have a nice documentation http://doc.qt.io/qt-4.8/signalsandslots.html. Every widget can send different signals. For example combobox (QComboBox object) send signal every time if you select another text inside: activated(const QString & text) This signal is sent when the user chooses an item in the combobox. The item's ...
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