It depends on how you look at it: a properly configured deployed seaside image will have zero windows and will never popup anything, so it makes no difference. I never use the RFB model, mostly out of principle, a server app should not have a classic gui. The seaside development tools allow you to upgrade MC packages, browse code, execute doits, save the image, kill processes, ... That being said, the headless support in VW 7 is very nice (mainly capturing display activity into errors, errors/transcript go to stdout/stderr/logfile, options to make std image headless and vice versa). Sven On 25 Aug 2010, at 12:18, Schwab,Wilhelm K wrote:
That makes complete sense, and it is a crushingly disappointing realization :( I'll get over it, but it is all the more reason to eventually strive for the Dolphin session-based model. Then deployed console apps would not have a GUI at all, for real. I will admit that there is something to be said for having something running headless and then magically popping into a GUI, locally or remotely, but something that is really headless, not merely making a bunch of calls that are artificially no-ops, has value too and we can't build that right now.
BTW, hopefully no one is thinking of making it impossible to create bitmaps when headless, right? That would be bad for web servers and other things that create graphics for use elsewhere. Sorry to even mention it, but...
Bill
________________________________________ From: pharo-project-bounces@lists.gforge.inria.fr [pharo-project-bounces@lists.gforge.inria.fr] On Behalf Of Sven Van Caekenberghe [sven@beta9.be] Sent: Tuesday, August 24, 2010 8:59 AM To: Pharo-project@lists.gforge.inria.fr Subject: Re: [Pharo-project] why are Bitmaps instanciated even in headless mode?
Running -headless (actually -vm-display-null -vm-sound-null) just instructs the VM to connect to a dummy (null) display and sound device, so that display operations have no effect, as far as I understand.
Sven
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