[Pharo-project] Some questions about pharo

Stéphane Ducasse stephane.ducasse at inria.fr
Tue Oct 19 03:11:39 EDT 2010

This is neat.
Thanks for the information.


On Oct 18, 2010, at 10:41 PM, Alexander Lazarević wrote:

> 2010/10/18 Adrien BARREAU <abarreau.dev at live.fr>:
>> - If I run a headless Pharo, is it possible to display the graphical
>> interface after? (for example, if something raises an exception, I want to
>> open the GUI and use the debugger)
> It depends. If your headless Pharo image is running on a unix VM you
> could utilize the genius OSProcess/XDisplayControl plugin available
> for this VM. Load the appropriate packages from [1] into your Pharo
> image and then you can close and reopen the window even on another
> machine if it's running X11. For example this
> OSProcess thisOSProcess closeXDisplay.
> (Delay forSeconds: 5) wait.
> OSProcess thisOSProcess displayOnXServer: ':0.0'.
> will close the Window (headless) and reopen it (headful) again on the
> local X server after five seconds.
> If you're using Seaside in that image you could trigger window
> open/close via Seaside or you could change the default handler for
> errors to make the window open on the local display as a default, ...
> Alex
> [1] http://www.squeaksource.com/OSProcess
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