[Lazarus] File is locked?

[Leonardo M. Ramé]

Hi, I'm checking the contents of an .ini file every 10 seconds (with a 
TTimer), the file is modified by another application and I display its 
contents in my program.

The problem is the file is locked while the other program is using it 
and aparently TIniFile cannot handle this situation, thus raising an 
"Unable to open file" error. How can I check if the file is locked 
before reading its contents?.

Regards,
-- 
Leonardo M. Ramé
http://leonardorame.blogspot.com