File open

From: emanshu (munish.nr_at_gmail.com)
Date: 11/25/05 

Date: 25 Nov 2005 02:32:17 -0800

HI all,

I an designing an application in C++. i want to open file requested by
end user but i want to reflect an error to user if file is already
opened by some other application..
will anybody tell me that how to know that the file is already open or
closed..

any help is highly appreciated...

thanks,
Munish Nayyar
emanshu "IM"