How to stop file creating/writing process

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Win2008-R2

when a file is created/wrote/pasted in/to a folder by anyone, i want to stop this process and create/write/paste this file to that folder after encrypting with pgp. but i don't know how to stop file creating and writing. i write in c#.

addition:
according to me, my problem is not about copy and paste events. i think the solution is file system monitor and stopping file creation and writing. but how can i do this? is there any sample code?

Posted 9-Feb-10 11:01am

ibrahim kola

Updated 9-Feb-10 21:18pm

v3

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2 solutions

Solution 1

You'd have to write a system wide keyboard hook that captures the paste, reject it, work out what's in the clipboard, and then do your operation to it.

Posted 9-Feb-10 11:09am

Christian Graus

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Kythen · Accepted Answer · 2010-02-09T11:28:00

This isn't something you can do with C#. I believe you'll need to write a file system filter driver. A global keyboard hook won't work because it won't stop other triggers for write operations like copy/pasting with the mouse.

You can start reading about file system filter drivers here: http://www.microsoft.com/whdc/driver/filterdrv/default.mspx[^]