open file for reading and allow access by others

[jon_mcbee]

How can I open a file for reading and still allow others to access (read and write) the file?  I plan to keep this file open for the duration of my program and close it at the end.  However while my program is running another program will need access to the file so it can write to it.  I may be wrong, but I dont think that setting the appropriate permission will solve the problem...  Thank you for your time.

Cheers!

[tbd]

hi jmcbee,

      I think as long as "readers" open a file as "ReadOnly", then the OS (at least Windows) will allow another process to open and write to the same file without a problem.  It's been a while since I've done this - maybe 7 years - and I may have opened the "writer" first, though doubt it makes a difference.

Have you tried?

Cheers!