qpushbutton not disabling properly

[jpn]

The shortest possible way to solve the problem is to add a call to QCoreApplication::processEvents().

void RoboSearch::listFiles()
{
    searchButton->setEnabled(false);
    // let the application process its events
    QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
    //code is searching through files, so it takes ~5s
    searchButton->setEnabled(true);
}

void RoboSearch::listFiles()
{
    searchButton->setEnabled(false);
    // let the application process its events
    QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
    //code is searching through files, so it takes ~5s
    searchButton->setEnabled(true);
}

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5s is a long time for a GUI application to be frozen so you might want to call the same method every now and then during the search.