What is the impact of a FileSystemWatcher on a hard drive?

Question

I\'ve used FileSystemWatcher in the past. However, I am hoping someone can explain how it actually is working behind the scenes.

I plan to utilize it in an applicat

Answer 1

The short answer is no. The FileSystemWatcher calls the ReadDirectoryChangesW API passing it an asynchronous flag. Basically, Windows will store data in an allocated buffer when changes to a directory occur. This function returns the data in that buffer and the FileSystemWatcher converts it into nice notifications for you.