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  1. Qt
  2. QTBUG-96286

[Reg 5.9.8 -> ] QWidget loosing contents when using winId() and re-opened

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      Description

      This is very similar case to QTBUG-79012 yet it seems different as the sample project in QTBUG-79012 cannot be reproduced in Qt5.15.5 while this can.

      In QDialog, if you call winId() and close the dialog, the contents of the dialog are not properly displayed when re-opened.

      How to reproduce
      1. Use QTBUG-96286.zip
      2. Click File -> Test
      3. Press "winId" button -> A message dialog appears
      4. Press OK to close the message dialog
      5. Press "x" to close the dialog
      6. Re-open the dialog from File -> Test

      Actual result :
      The re-opened dialog is somehow in a different size (see screenshot ) and
      when expanding the dialog by dragging, it looses its contents.

      Known issue

      • Not reproducible on 5.9.8 just like QTBUG-79012
      • This problem does not occur when using QWidget::hide()
      • Workaround : Deleting and recreating the instance

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              Assignee:
              vhilshei Volker Hilsheimer
              Reporter:
              nagrohn Nahomi Gröhn
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                Dates

                Created:
                Updated:
                Resolved:

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