[Octave-bug-tracker] [bug #42490] helpdlg does not return a proper graphics handle

[Dan Sebald]

Follow-up Comment #6, bug #42490 (project octave):

FYI, if code is still in the state I think it is, the Qt dialog code is
something I wrote, and it was not initially intended to be a full-blown
implementation of handles or whatnot for reasons of limitations.  Also, the
dialogs have to be modal because of this limitation.  The limitation at the
time was the lack of a well-designed cross-thread communication between Octave
core and whatever GUI it is running in.  Without that, about all that can be
done is suspend the Octave core while the GUI dialog is responded to, return
the answer, then take the core out of sleep state and read the result.  Having
a good cross-thread comm where commands and results can be exchanged would
solve not only this problem, but make breakpoints and such easy as well.


    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?42490>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/