[Octave-bug-tracker] [bug #44897] ginput() hangs interpreter if window closed before routine completes

[Rik]

URL:
  <http://savannah.gnu.org/bugs/?44897>

                 Summary: ginput() hangs interpreter if window closed before
routine completes
                 Project: GNU Octave
            Submitted by: rik5
            Submitted on: Tue 21 Apr 2015 08:18:57 PM PDT
                Category: Octave Function
                Severity: 2 - Minor
                Priority: 5 - Normal
              Item Group: Other
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

When ginput() is active, and the plot window is closed with the close button
on the window menubar, then the interpreter is left hanging waiting for the
function to complete.  A Ctrl+C will interrupt things and return the user to
the prompt so there is a workaround.

Sample Code:


[x,y,b] = ginput
## Now close plot window
## Octave interpreter is left hanging until Ctrl+C is pressed.


Possibly could work around this by inserting our closereq callback routine
while ginput is active.  And if the user already had a closereq routine we
would need to save and restore it.





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