how to hide the horizontalLayout?
i want hide the horizontalLayout.
i can't finding setvisible and hide.
A layout can not be hidden since they are not widgets and does not have a setVisible() function.
You have to create a widget that you can hide, that contains the layout and the other widgets that should be hidden, then you hide the widget instead of the layout.
QWidget* myWidget = new QWidget(); QHBoxLayout * layout = new QHBoxLayout(myWidget); layout->addWidget(new QLabel("Label")); myWidget->setVisible(false);