void MainWindow::createContextMenu()

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MainWindow::MainWindow(){    spreadsheet = new QTableWidget;    setCentralWidget(spreadsheet);    createContextMenu();
void MainWindow::createContextMenu(){    /*    QAction *newAction;    QAction *openAction;    QAction *saveAction;    QAction *saveAsAction;    QAction *exitAction;*/    spreadsheet->addAction(newAction);    spreadsheet->addAction(openAction);    spreadsheet->addAction(saveAction);    spreadsheet->setContextMenuPolicy(Qt::ActionsContextMenu);}


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