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  1. Qt
  2. QTBUG-47093

Windows Accessibility code crash

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Details

    • Bug
    • Resolution: Done
    • P2: Important
    • None
    • 5.4.0, 5.4.1, 5.4.2, 5.5.0
    • GUI: Accessibility (a11y)
    • None
    • Windows
    • a0e2e715f58134c7c913996e036b154df1f71d99

    Description

      When running accessibility software like Dragon random crashes will occur in the QtWidget dll. After tracing this down it ends up being a zero pointer dereference in QAccessibleWidget ( widget() call may return 0 ). This can be avoided by testing isValid() on the QAccessibleWidget before using it. This change is applied to qtbase\src\plugins\platforms\windows\accessible\qwindowsmsaaaccessible.cpp

      I've attached a fix for qwindowsmsaaaccessible.cpp

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            frederik Frederik Gladhorn
            altera_2011 ron
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            Dates

              Created:
              Updated:
              Resolved:

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