[Octave-bug-tracker] [bug #40242] FLTK + GUI = crash on MacOSX

[Pantxo Diribarne]

Follow-up Comment #8, bug #40242 (project octave):

I have installed QtHandles graphics_toolkit on mac os 10.7 :
 - it works just fine with the gui
 - crashes with --no-gui ("QWidget: Cannot create a QWidget when no GUI is
being used"). This is due to using a QCoreApplication instead of a
QApplication in --no-gui mode.
 - in cli mode, graphics_toolkit ("qt") returns an error as no QApplication
has been initiated.
 
That tends to make me second Ben interpretation. Even though the figures may
be launched from the interpreter thread they use the QApplication context that
was instantiated from the main GUI thread. In the case of FLTK the
initialization of the GUI is made from the interpreter thread. 

Is it possible to Initialise FLTK from the GUI thread (which would make 2 GUI
toolkits in the same thread)? 


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