Checking if a file is open

Hi how can i check to see if a text file is being used by another application in VB6 ??

May be this might help:

There are a couple of tricks you can use.
Try FileExist. In many cases FileExist will return a 2 if the file exists but is open in read-deny mode.

VB Code:

a=FileExist("yourfile")
a==0 then no file.
a==1 file exists. Looks OK.
a==2 file exists. Not currently accessible.

Try FileSize. If a file is open or being written to, FileSize will return a 0. File in use:
Filesize==0

Put the two of them together with:

VB Code:

While !FileExist("filename")
       TimeDelay(1)
    endwhile
    While FileSize("filename")==0
       TimeDelay(1)
    endwhile

http://www.vbforums.com/showthread.p...f+file+is+open

http://www.vbforums.com/showthread.p...hreadid=249155