如何禁用QDockWidget标题栏的上下文菜单 [英] How to disable the context menu of a QDockWidget title bar

问题描述

我有几个QDockWidgets都不是closabale(使用Qt 5.6).因此，右键单击其中一个的标题栏时显示的上下文菜单仅具有禁用的条目，而我想禁用整个上下文菜单.

I have a couple of QDockWidgets that are all not closabale (using Qt 5.6). Therefore, the context menu that is displayed when right-clicking a title bar of one of them only has disabled entries, and I would like to disable the whole context menu.

我试图将contextMenuPolicy设置为NoContextMenu，但没有成功.

I tried to set the contextMenuPolicy to NoContextMenu without success.

然后，我尝试使用QDockWidget的子类，重写ContextMenuEvent并忽略它.菜单仍然显示.

I then tried to use a subclass of QDockWidget, override the ContextMenuEvent and ignore it. The menu is still displayed.

然后我尝试安装一个事件过滤器以捕获ContextMenuEvent，但它没有捕获任何事件，仅是PaintEvents，ResizeEvents等.

I then tried to install an event filter to catch the ContextMenuEvent, but it did not catch any, just PaintEvents, ResizeEvents etc.

我没主意了……任何帮助将不胜感激！

I'm out of ideas … any help would be greatly appreciated!

推荐答案

根据注释，有必要将QDockWidget上的上下文菜单策略设置为Qt::PreventContextMenu ...

As per the comments it is necessary to set the context menu policy on the QDockWidget to Qt::PreventContextMenu...

dock_widget->setContextMenuPolicy(Qt::PreventContextMenu);

而不是简单地Qt::NoContextMenu.从文档 Qt::NoContextMenu只需将上下文菜单处理推迟到父窗口小部件，而不是完全阻止它.

rather than simply Qt::NoContextMenu. From the documentation Qt::NoContextMenu simply defers the context menu handling to the parent widget rather than preventing it entirely.

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