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. How to force update
QtWS25 Last Chance

How to force update

Scheduled Pinned Locked Moved Unsolved General and Desktop
2 Posts 2 Posters 520 Views
  • 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.
  • Simon PlattenS Offline
    Simon PlattenS Offline
    Simon Platten
    wrote on last edited by
    #1

    I have a number of widgets, in most cases everything updates and works, but in one particular case a button doesn't update, yet if I stop in the debugger then single step the update occurs....I'm manually calling the 'update' method associated with the widget but this doesn't cause and instant update. I've tried using QCoreApplication::processEvents(), but this causes a crash.

    How can I ensure a widget is redrawn when I want it to be?

    Kind Regards,
    Simon Platten

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

      Hi
      its sounds a bit odd.
      What do u mean by update ?
      You change the text on button ?
      Normally it will redraw them self when needed for Qts classes.

      So i think we need a bit more context and code to give any suggestions.

      Only thing i know to prevent updates is using long lasting loops or any construct that strangulates the
      event queue.

      1 Reply Last reply
      3

      • Login

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