in reply to Re: Read a file that is opened by another process in thread Read a file that is opened by another process
Sorry, you're right BrowserUk, --
Let me rephrase the question:
* assume a file with exclusive access by a process (ex .NET C#: FileStream fs = fi.Open(FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
* it seems I can't use any Windows API to read that file, - not from managed C# at least, so i tried from Perl, - but I can't find a way here either.
* and no, Notepad will not open this file.
But I assume there must be a way, since some backup applications are able to copy files, that are currently opened by other processes ?
Re^3: Read a file that is opened by another process
by BrowserUk (Patriarch) on Nov 20, 2010 at 15:51 UTC
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With the appropriate privileges and access to the right APIs this is possible.
But gaining access to those APIs is far harder from Perl than C or C#, and way beyond the scope of this forum.
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
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I'll gladly help someone with an XS or Win32::API solution once they've id'ed the proper interface.
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once they've id'ed the proper interface.
It is the identification of the appropriate APIs and security settings--basically reading & understanding the appropriate MS documentation--that I consider beyond the scope of this forum.
Once so identified, calling those is still far easier from C# than via either of XS or Win32::API
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
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OK, I feared that might be the case.
I'll see how far I can get with the Windows unmanaged API from .NET (P/Invoke to C DLLs).
Thanks anyway :)
allan
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