Qt Forum

    • Login
    • Search
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Groups
    • Search
    • Unsolved

    Update: Forum Guidelines & Code of Conduct

    Detect screen DPI change

    General and Desktop
    1
    1
    620
    Loading More Posts
    • 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.
    • F
      fxxxx last edited by

      How can I detect screen's DPI change?
      Since I have a window(derived from QWidget) which may switch between two monitors and dynamically update according to screen DPI, it seems that I can only listen to screenChanged(QScreen*) signal. It works fine when I drag the window between monitors.
      But it doesn't work when I opened app in another monitor and switches menu bar between two monitors(through System Preference -> Displays -> Arrangement in mac). It seems that the signal is not emitted in that situation.
      Which signal should I listen to? Is there a better way?
      Thanks.

      1 Reply Last reply Reply Quote 0
      • First post
        Last post