Prevent a QMenu from closing when one of its QAction is triggered

Question

I\'m using a QMenu as context menu. This menu is filled with QActions. One of these QActions is checkable, and I\'d like to be able to check/uncheck it without closing the c

Answer 1

Use a QWidgetAction and QCheckBox for a "checkable action" which doesn't cause the menu to close.

QCheckBox *checkBox = new QCheckBox(menu);
QWidgetAction *checkableAction = new QWidgetAction(menu);
checkableAction->setDefaultWidget(checkBox);
menu->addAction(checkableAction);

In some styles, this won't appear exactly the same as a checkable action. For example, for the Plastique style, the check box needs to be indented a bit.