app launch detection

[rachit goel <panthers0072001 yahoo co uk>]

i am trying to program an applaunch detection tool or u can say a "please wait -- application is starting up" 
utility but don't know where to start .
 
 i also read a mailing list 
 <http://www.redhat.com/archives/xdg-list/2000-November/thread.html#00000>
 
 and from this it seems there was some proposal for making this kind of thing a statndard part of toolkits or 
xlib or something like that 
 
 now i would like to know is that was it implemented if yes then how can i use it and if not then is it 
possible without making any hacks as i need a very-very robust , stable and portable across desktops 
mechanism , due to enviornmental considerations 
 
 am using GTk + 2.6 with linux kernel 2.6.11 ( those that came with FC4 by default)
 
 also am working on both gnome - 2.10 and xfce 4.2 desktop enviornments 
 

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