Only one instance of a capplet should be allowed

["Jaap A. Haitsma" <jaap haitsma org>]

Hi,

Currently it is possible to fire up a capplet multiple times. This can 
be confusing for users [1]. It would be better if a capplet was launched 
for the second time that the window of the currently running applet was 
raised.

In [1] it is suggested to use a dbus server for this, but this seems 
overkill to me.

Is there another easy way to do this?


Jaap


[1] http://bugzilla.gnome.org/show_bug.cgi?id=331826