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how can i expand the QTreeWidgetItem when i click the Icon or double click on anywhere the item ?



  • how can i expand the QTreeWidgetItem when i click the Icon or double click on anywhere the item ?
    i want to simulate a "arrow icon" right same with the Qt itself has.
    now i use QTreeWidgetItem::setIcon, but i found no way to just expand the item while i click on the Icon but not anywhere on the item.

    thank you!


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