This is neat. Thanks for the information. Stef On Oct 18, 2010, at 10:41 PM, Alexander Lazarević wrote:

2010/10/18 Adrien BARREAU <abarreau.dev@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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