Menubar In Qt

[Spencer Prather]

Amenu is a widget that offers a list of choices to the user, such as a set of actions or functions. Menu widgets behave like native operating system menus, such as the menus that pull down from the menubars commonly found at the top of many desktop application windows. A menu is usually opened, or made visible, by activating a menu button, choosing an item in a menu that opens a sub menu, or by invoking a command, such as Shift + F10 in Windows, that opens a context specific menu. When a user activates a choice in a menu, the menu usually closes unless the choice opened a submenu.

A menu that is visually persistent is a menubar. A menubar is typically horizontal and is often used to create a menu bar similar to those found near the top of the window in many desktop applications, offering the user quick access to a consistent set of commands.

When a menu opens, or when a menubar receives focus, keyboard focus is placed on the first item. Because menubar and menu elements are composite widgets as described in the practice for Keyboard Navigation Inside Components, Tab and Shift + Tab do not move focus among the items in the menu. Instead, the keyboard commands described in this section enable users to move focus among the elements in a menubar or menu.

If aria-owns is set on the menu container to include elements that are not DOM children of the container, those elements will appear in the reading order in the sequence they are referenced and after any items that are DOM children. Scripts that manage focus need to ensure the visual focus order matches this assistive technology reading order.

I've already hit alt and a bunch of other keys hoping to find a shortcut but I have yet to find any. F11 turns on fullscreen mode where the menubar is visible, but I then unchecked the menubar again to see if it would stick, only to regretfully discover that it has now disappeared both in full screen mode and regular mode.

A menu is a widget that offers a list of choices to the user, such as a set of actions or functions. The menubar type of menu is usually presented as a persistently visible horizontal bar of commands. Menubars behave like native operating system menubars, such as the menubars containing pull down menus, commonly found at the top of many desktop application windows.

The menubar role is used to create a menu bar similar to those found near the top of the window in many desktop applications, visually persistent, typically horizontal, bar of menu items offering the user quick access to a consistent set of commands.

A menubar contains three types of menu items, including menuitem, menuitemradio and menuitemcheckbox. These menu items may optionally be nested in one or more group containers. Groups or items may optionally by separated with separator elements. While every menu item must be able to receive focus, even if disabled, the group and separator elements are not focusable.

An example of a native menubar is the bar which may be present at the top of the screen if you are reading this in a desktop browser. An example of a web-based menubar is the horizontal menu bar that reads "File Edit View Insert Format", etc., which is usually visible under the document name in a Google doc.

Menubar interactions should be similar to the typical menu bar interaction in a desktop graphical user interface. In Google Docs, each of those menu items is a menuitem with a popup submenu, so each has an aria-haspopup attribute set to true. The menubar element does not.

The menubar and all the menu items are focusable and have a tabindex attribute set. When the menubar receives focus through tabbing, keyboard focus is placed on the first menuitem. Each item in the menu has tabindex set to -1, except the first item has which has its tabindex set to 0.

If a menubar receives focus as a result of a context action, such as a shortcut key, Escape or Enter may return focus to the invoking context. That said, make sure not to create shortcut keys that interfere with user agent, operating system, or assistive technology shortcuts - any UA, OS, or AT.

If a menubar has a visible label, include aria-labelledby set to a value that refers to the labelling element. Otherwise, provide the menubar with an accessible name by including a descriptive aria-label.

A menuitem element in the menubar can contain a child submenu of menu items. Submenus can be nested several deep. Generally, the outer menubar is horizontal and all the submenus are vertical. If this is not the case, if your menubar is vertical, include aria-orientation="vertical" on the menubar element. Otherwise, this attribute is not necessary, as the default value is horizontal.

See menuitem keyboard interactions, menuitemradio keyboard interactions, and menuitemcheckbox keyboard interactions for more information on keyboard interactions when focus is on a menuitem in a menubar (which it always is).

An example of a native menubar is the bar which may be present at the top of the screen if you are reading this in a desktop browser. An example of a web-based menubar is the horizontal menu bar that reads \"File Edit View Insert Format\", etc., which is usually visible under the document name in a Google doc.

A menuitem element in the menubar can contain a child submenu of menu items. Submenus can be nested several deep. Generally, the outer menubar is horizontal and all the submenus are vertical. If this is not the case, if your menubar is vertical, include aria-orientation=\"vertical\" on the menubar element. Otherwise, this attribute is not necessary, as the default value is horizontal.

I've been developing a GUI using PyQt5 and wanted to include a menu bar. When I went to code this feature, however, my menu wouldn't appear. Figuring my understanding on how to implement menu bars in PyQt5 was off, I looked for a pre-existing example online. With some tweaking I developed the following test case:

I have also tried creating the menu bar (and the rest of my GUI layout) in QTCreator before converting the .ui file to an importable .py using pyuic5. I thought this would eliminate some programming mistake on my end, but the menubar still won't show. Any thoughts?

I've realized that the menu bar will become responsive if I click off the application window and then click back onto the window - effectively unfocusing and the focusing the application. Armed with this information I realized that I am not the first to notice this problem (see ). Unfortunately, I'm still not sure how to resolve the issue.

NativeMenuBar property specifies whether or not the menubar should be used as a native menubar on platforms that support it. If this property is true, the menubar is used in the native menubar and is not in the window of its parent, if false the menubar remains in the window.

The system-wide menubar of macOS reserves keywords such as "Exit", "Quit", and etc. For the same reason, yurisnm's example code shows only the menu items except "Quit" on Mac OS. Actually "Quit" has TextHeuristicRole, so overrides "Quit " behavior in the Application menu. When you click "Quit python" in "Python" menu, it does not quit and just print "quit triggered".

Under MacOS, an application menu appears at the top of the screen. I managed to get the Quit menu option to appear in the above example by prepending the string "Quit" with a null character as follows:

since last update, the elephant icon of Evernote is sitting in my menubar. I neither need nor use it there. But there is not option to remove it. Apps should come with such an option. Is there a way to remove it from the menubar or is it planned to include such option to the Evernote preferences?

Evernote showing itself again as one of the least customer-friendly applications out there. This is a violation of Apple's own Menu Bar guidelines... ( -interface-guidelines/components/system-experiences/the-menu-bar/)

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