[Octave-bug-tracker] [bug #39935] dialog button order incorrectly changes depending on CLI or GUI

[Mike Miller]

Follow-up Comment #6, bug #39935 (project octave):

So we have two (different desktop environments?) Ubuntu 12.04 desktops with
the same Qt version with different orderings.

The problem seems likely to be that QMessageBox intentionally changes the
order of buttons depending on the platform, which possibly also includes the
desktop environment or window manager. The ButtonRole enum is used along with
the system environment to determine the button order.

See
http://qt-project.org/doc/qt-5.0/qtwidgets/qmessagebox.html#advanced-usage

I see that do_question_dialog sets all three buttons to the same ButtonRole,
but perhaps there is a secondary ordering index for buttons with the same role
value?

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