Prevent X-Window Closing and Execute Script on Attempted Close

amy

I need a generic way of preventing an X window from closing the same way trap can protect a shell script. To keep this post simple, I'll describe it on a point-by-point basis.

Why this is important:
Recently, I've been looking around to replace Seamless Windows with something more responsive and metisse-friendly. One way to do this would be to launch a dedicated VM for each application. VirtualBox has the necessary command-line functionality (ex. acpipowerbutton), front-end (VBoxSDL), and guest screen resizing to make this practical.

The roadblock:
I need something similar to the trap command in bash to work for a launched program. That way I can prevent the VBoxSDL window from instantly closing (taking the VM with it), and send the appropriate shutdown commands to it.

Here's how I want things to work:

Code:
#!/bin/bash
lt;X11 trapgt; quot;VBoxManage controlvm 2e31f98e-749f-44cd-b3ba-f0f160854192 acpipowerbuttonquot; lt;X11 term signalgt;

VBoxSDL -vm 2e31f98e-749f-44cd-b3ba-f0f160854192
Could someone please fill in those two blanks or offer an alternative method? Thanks.

Hi,
very clever your idea about a X11 trap for window closing.
However, I don't know how to implement this signal.

I'm busy doing almost the same trick but with basic bash trapping.
What I think is : launch vboxsdl
wait forever and trap all signal
when signal, execute vboxmanage -controlvm xxx -savestate, then exit the bash script


At this stage, my bash script does not work.
Here is the script :

Code:
#!/bin/bash

vboxsdl -vm windouille  amp;
echo 'Press [CTRL-C] to hibernate your windouille box...'

trap 'vboxmanage controlvm windouille savestate; exit ' ABRT EXIT HUP INT TERM QUIT

while (( 1 )); do       wait
done;
I've already posted on virtualbox forum to ask for any help :   from : localhost/forums.virtualbox.org/viewtop...?p=15092#15092
waiting for an answer