[Octave-bug-tracker] [bug #43907] OpenGL render code called even when gnuplot is graphics_toolkit

[Michael Godfrey]

Follow-up Comment #2, bug #43907 (project octave):

This definitely needs some thought.

Simplest would be to close all current figures when
(before) the toolkit is changed. The alternatives of
either switching the active figures or allowing more
than one toolkit to be running at the same time seem
both hard to implement and confusing.

There may be other requirements that people may think
could be useful.

But, in the short run it might be best to
simply put code near the
beginning of graphics_toolkit.m which closes all
figures. It appears that close("all force") may be
right, but the documentation suggests delete() as
an alternative which avoids possible delay or hang.
But, it is not explained how to do the equivalent of
"close all" or "close force" if using delete().
Doing this will tend to avoid more bug reports about
weird things happening when the graphics_toolkit
is changed while figures are open. 

Since Matlab does not provide graphics_toolkit() or its
equivalent there should be no compatibility issue.


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