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. Cannot see values of variables when debugging

Cannot see values of variables when debugging

Scheduled Pinned Locked Moved Solved General and Desktop
3 Posts 2 Posters 3.6k 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.
  • P Offline
    P Offline
    PetQter
    wrote on last edited by
    #1

    Hello,
    I have installed Qt 5.12.0, QtCreator 4.8.0 and Visual Studio 2017. I build 32-bit application with kit Desktop Qt 5.12.0 MSVC2017 32-bit.

    I see values of many variables <not accessible> or <optimized out>. I checked compiler switches and see that compiler uses -Od and -Zi (disable optimization and setting debug format) so it is right. When I start debug built version without QtCreator and attach Visual Studio debugger then I see values of all variables so full debug information is present.
    I tried to set path to Debug folder of my application with application's *.pdb into Options->Debugger->CDB Paths. It does not help.
    Why QtCreator does not display values of variables ?

    P 1 Reply Last reply
    0
    • P PetQter

      Hello,
      I have installed Qt 5.12.0, QtCreator 4.8.0 and Visual Studio 2017. I build 32-bit application with kit Desktop Qt 5.12.0 MSVC2017 32-bit.

      I see values of many variables <not accessible> or <optimized out>. I checked compiler switches and see that compiler uses -Od and -Zi (disable optimization and setting debug format) so it is right. When I start debug built version without QtCreator and attach Visual Studio debugger then I see values of all variables so full debug information is present.
      I tried to set path to Debug folder of my application with application's *.pdb into Options->Debugger->CDB Paths. It does not help.
      Why QtCreator does not display values of variables ?

      P Offline
      P Offline
      PetQter
      wrote on last edited by
      #2

      @PetQter I found solution. Tools->Options->Debugger->Locals & Expressions, setting: "Use Debugging Helper". When I tried to set it I can see local variables. But when I unset it again still I can see local variables.
      So it seems that on first setting of this checkbox invokes some permanent change.
      Weird but functional.

      1 Reply Last reply
      0
      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #3

        Hi,

        It's indeed surprising...

        Anyway, thanks for sharing !

        Since you have it working now, please mark the thread as solved using the "Topic Tools" button so that other forum users may know a solution has been found :)

        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
        0

        • Login

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