I know this is not an easy one ....

I tried with IFileIsInUse  but works only if the Process uses it to lock the files.

I tried also what suggested as "The Hard Way" here : hxxps://stackoverflow.com/questions/8726906/delphi-finding-the-process-that-is-accessing-a-file-from-my-program

but seems not working either

any idea ?

Regards

S

9 hours ago, djpolgio said:

I know this is not an easy one ....

I tried with IFileIsInUse  but works only if the Process uses it to lock the files.

I tried also what suggested as "The Hard Way" here : hxxps://stackoverflow.com/questions/8726906/delphi-finding-the-process-that-is-accessing-a-file-from-my-program

but seems not working either

any idea ?

Regards

S

"seems not working" ?

Did got any errors ?

QueryProcess -> QueryOpenHandles

this could be useful -> http://forums.codeguru.com/showthread.php?176997.html

Try sysinternals Handle application 
https://docs.microsoft.com/en-us/sysinternals/downloads/handle

A warning - Check for possible driver based kernel hooks if any

Thanks,

@Conquest I'll check it out,

@opc0d3 no errors, just the locked file is not found. To do tests I used "Easy File Locker", I think the way it locks the file could be the problem. Infact I tested by writing a file in a loop (my app) and the lock was detected smoothly.

S

Here's an example on CodeProject:

https://www.codeproject.com/Tips/893593/Cplusplus-MFC-File-Unlocker