run2 operation

Charles Wilson
Thu Aug 1 13:35:00 GMT 2013

On 8/1/2013 8:40 AM, wrote:
> Re: un2 0.4.2
> $ checkX --verbose
> "checkX Info: Unspecified X display (check --display in xml
> <SelfOptions> or in cmdline; also check $DISPLAY environment
> variable)."
> But, Xwindows is running, and was started from this terminal sith
> "startx &"
> Shouldn't it be detected and the DISPLAY valued returned so that I
> could set the DISPLAY variable for this mintty windows as well?

No, that's not what checkX is for.  You have to tell IT where you think 
the X server is running, and it will tell you if it can contact a server 
there.  So:

$ checkX --display=
[exits with status value 0 or 1]

Really, checkX is just a testing tool, that shares/exercises a lot of 
the same under-the-hood code as run2.  It's not really of that much use, 
except *perhaps* as below.

> When I invoke run2 (from a shortcut with the example .xml file) it
> also start a mintty terminal window, but I want it to start an
> XWindow or at the least use the currntly running X server.

Mintty is not an X program. I'm not sure what you are trying to 
accomplish, except perhaps to arrange that *within* the mintty/bash 
session, $DISPLAY is set correctly so that you can launch programs that 
DO need X successfully?

> The running server is not detected to the xml's  "GDI" section of the
> xml is used.

Right, if you don't tell it which display to contact, it doesn't guess. 
You don't really want your GnuCash session showing up on somebody else's 
XWindow display do you?

> checkX is very good, but I wish it would detect a currently running X
> server and report it'S DISPLAY value.

And how do you suggest it do that? Poll every reachable machine on the 
local network using arp, extract the IP addrs, then ask each one if they 
have a display on :0, :1, .. :99, and repeat?

> I have just started with run2, so I'm not privy to a lot of it and
> not xml savy yet.
> Any advice would be greatly appreciated.

Read /usr/share/doc/run2/*

Something like this .sh script might do what you want...but you'd 
probably want to launch it using a run2.xml <Global><Target/> (or plain 
old run.exe).

============== snip ===============
export DISPLAY=

     # Cleanup from last run.
     rm -rf /tmp/.X11-unix

     XWin -multiwindow -clipboard -silent-dup-error 2>/dev/null &

/usr/bin/checkX || start_XWin

while ! /usr/bin/checkX
   ## printf "waiting for xserver to start\n"
   sleep 1
sleep 1
/usr/bin/urxvt-X &
============== snip ===============

But that really does nothing, that 'startxwin.exe' and ~/.startxwinrc 
already do better.


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