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  1. Qt
  2. QTBUG-24672

When destroyed() signal is called the slot of another variable is already deleted

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Details

    • Bug
    • Resolution: Done
    • P1: Critical
    • 5.0.0 RC 1, 5.0.0 RC 2
    • 4.6.3, 4.7.4, 4.8.0, 5.0.0 Beta 1
    • Core: Object Model
    • None
    • Windows 7

    Description

      If you have two variables (A and B) where and you connect B's destroyed() signal to A, it sometimes goes to A's slot and sometimes not. It depends of the class hierarchy if the slot is run. I attached an example application to reproduce the issue. In the application there is a flag that you can use to modify the hierarchy to reproduce the issue or make it to work fine.

      This bug report might be a duplicate of QTBUG-9525.

      Attachments

        1. DestroyedTest.zip
          0.8 kB
          Qt Support
        2. enable_destroyed_signal_for_widget_children_qt_4.8.patch
          0.8 kB
          Janne Anttila
        3. QTBUG-24672.7z
          0.8 kB
          Janne Anttila

        Issue Links

          is required for

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-27426 Qt 5.0 Final release tasks

          • P0: Blocker - MUST be fixed ASAP. This includes issues that prevent/block further Qt development; Legal issues & Serious data loss issues.
          • Closed
          For Gerrit Dashboard: QTBUG-24672
          # Subject Branch Project Status CR V
          40091,5 Emit destroyed() signal before children get deleted master qt/qtbase Status: MERGED +2 0

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            People

              laknoll Lars Knoll
              qtcomsupport Qt Support
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              Dates

                Created:
                Updated:
                Resolved:

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