QSplitter *splitter = new QSplitter(Qt::Horizontal, this); splitter->setHandleWidth(10);
QSplitter *splitter = new QSplitter(Qt::Vertical, this); int defaultWidth = splitter->style()->pixelMetric(QStyle::PM_SplitterWidth); splitter->setHandleWidth(defaultWidth);These examples show how to set the handle width in a QSplitter widget. The Qt library is required to use the QSplitter class.