Running a simple GUI app

[John Emmas]

Thanks Phil,

As it turns out, a lot of my problems have been solved by doing something
called a "rebase" (I needed to start 'ash' and then type 'rebaseall').

There's very little information about this on the internet.  Can anyone 
explain what exactly I've done and why it's improved things so much?

Regards,

John



----- Original Message ----- 
From: "Phil Betts" <Phil.Betts@ascribe.com>
To: <cygwin-xfree@cygwin.com>
Sent: 19 August 2008 09:42
Subject: RE: Running a simple GUI app


John Emmas wrote on Monday, August 18, 2008 7:43 PM::

> Sorry Phil if my questions seem 'lame'.  I should have explained that
> I only installed Cygwin this morning so I'm by no means up to speed
> with the concepts or terminology.

I'm sorry if it came across wrongly.  I didn't mean to suggest you were
currently lame.  I had assumed from the context that you were probably
new to at least some of the technology and was trying to steer you away
from _becoming_ a lame Windows user.

> Anyway, I managed to arrange Windows so that it now starts X at boot
> up. This means that I can use a (DOS) console window to navigate to
> the appropriate directory, type 'HelloWorld' and my HelloWorld app
> launches with X just running silently in the background.  That's a
> lot slicker than the procedure I was using a few hours ago.  Thanks
> for the suggestion.
>
> What's strange though is that I can't just double-click on the app's
> icon and launch it.  There's a (slim) chance that this could be a
> Windows problem but I've never known any other Windows app that can
> be started from a command line but can't be started by clicking its
> icon.  Any ideas?

As cgf has suggested, it's probably the DISPLAY environment variable.
Alternatively, you could use the standard X parameter "-display :0"
if your program supports it.

Phil
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