[vbox-dev] custom signal handling?

[Lev Lvovsky]

Outside of modifying the source code, is there any way to allow for  
signal handlers to perform certain behaviors?  I'm running on OS X,  
and would like to use virtualbox directly with launchd as opposed to  
writing a wrapper (or using existing ones such as macport's) - ideally  
a signal would send an ACPI power button signal to a running  
instance.  Is there any existing support for this?

thanks!
-lev