how to get selected rows in QTableView

The method selectionModel() return a QItemSelectionModel.

You can use QItemSelectionModel class to check/change/other selection(s)

Example:

QItemSelectionModel *select = table->selectionModel();

select->hasSelection() //check if has selection
select->selectedRows() // return selected row(s)
select->selectedColumns() // return selected column(s)
...