How to set row height of QTableView?

For Qt versions < 5

QHeaderView *verticalHeader = myTableView->verticalHeader();
verticalHeader->setResizeMode(QHeaderView::Fixed);
verticalHeader->setDefaultSectionSize(24);

For Qt versions >= 5 use

QHeaderView *verticalHeader = myTableView->verticalHeader();
verticalHeader->setSectionResizeMode(QHeaderView::Fixed);
verticalHeader->setDefaultSectionSize(24);

If that function doesn’t apply to vertical headers, you likely will have to call setRowHeight() every time you add a new row.