Blinking light?

[Sanjay Bhatnagar <sanjay ncra tifr res in>]

Hi,

I have an application which receives data from a socket and displays
it on the screen.  I wish to have a sort of a blinking-light on the
panel everything some data arrives on the socket.  Is there any remade
widget for this?  Alternatively, can an already existing widget can be
used for this purpose?

Thanks.

Regards,
sanjay