Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. Difference between QMdiSubWindow and QDockWidget
Forum Updated to NodeBB v4.3 + New Features

Difference between QMdiSubWindow and QDockWidget

Scheduled Pinned Locked Moved Unsolved General and Desktop
2 Posts 2 Posters 474 Views 1 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • G Offline
    G Offline
    Gbhutra
    wrote on last edited by
    #1

    What is the difference between QMdiSubWindow and QDockWidget??
    As far as I can tell in Qt 5.11.2 the QMdiSubWindow are also dockable! Is there a performance hit in one or the other?

    Also, the widgets created by either of them don't look very good on mac. I have set the application to use

    QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
    QApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
    

    The subwindows look fine on windows though.

    1 Reply Last reply
    0
    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi and welcome to devnet,

      They serve two different purposes.

      As the name suggests, QMdiSubWindow is for Multiple-Document Interface Applications which enable you to display multiple documents at the same time. Each document being displayed in its own window. MDI applications often have a Window menu item with submenus for switching between windows or documents.

      QDockWidget are usually used to provide controls, views, etc in an application.

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

      1 Reply Last reply
      1

      • Login

      • Login or register to search.
      • First post
        Last post
      0
      • Categories
      • Recent
      • Tags
      • Popular
      • Users
      • Groups
      • Search
      • Get Qt Extensions
      • Unsolved