[Octave-bug-tracker] [bug #44759] Freeze with drawnow

[Guillaume]

URL:
  <http://savannah.gnu.org/bugs/?44759>

                 Summary: Freeze with drawnow
                 Project: GNU Octave
            Submitted by: gyom
            Submitted on: Tue 07 Apr 2015 11:06:41 AM GMT
                Category: Plotting
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Crash
                  Status: None
             Assigned to: None
         Originator Name: Guillaume
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

I use drawnow() in a try/catch statement when using options not supported by
Octave or older MATLAB versions:

http://www.mathworks.com/help/matlab/ref/drawnow.html


try, drawnow limitrate; catch, drawnow; end


It seems that a call to drawnow() with a non valid option will freeze Octave
if a figure was opened, or next time one tries to open one:


figure; drawnow XXXX
<FREEZE>



>> drawnow XXXX
error: drawnow: invalid argument, expected 'expose' as argument
>> figure
<FREEZE>


It might be due to the undocumented drawnow syntax:


-- Built-in Function:  drawnow (TERM, FILE, MONO, DEBUG_FILE)





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