1/14/2024 0 Comments Filewatcher with email![]() Email a report or attach a file when the file is added to a. Check C++17 Filesystem - Writing a simple file watcher. A tutorial on how to send email automatically, by monitoring the folder for file changes. An advantage is that they do not require a HWND to be passed, so they can be used in a non-GUI application.Īnother, platform-agnostic method is to periodically check the contents of the folder and compare them to stored values. For an example check this page on CodeProject.īoth methods monitor directory changes, and using them is more complicated than SHChangeNotifyRegister. The other method is using the ReadDirector圜hangesW. For an example check this page on CodeProject. The first one is using FindFirstChangeNotificationA/ FindFirstChangeNotificationW functions. There are two other methods under Windows for monitoring file system changes. Other methods for monitoring file system changes FileWatcher classįileWatcher is a class that encapsulates the shell function calls. The revisions listed as 'add' were already present in the repository and have only been added to this reference. The reason could be that some editing applications delete or rename the original file, and create a new one with the same name.Ī better way is to register monitoring notifications for the parent folder, and for each notification to get the name of the affected file and compare it with the watched file. The 8 revisions listed above as 'new' are entirely new to this repository and will be described in separate emails. It turned out that this is not dependable, in some cases no change notification is raised at all by the OS. The initial implementation of the FileWatcher class was passing the PIDLIST_ABSOLUTE for the watched file to SHChangeNotifyRegister. Under Windows this can be implemented easily with the help of the SHChangeNotifyRegister and related functions. In file editing applications it is important to monitor the file system if the file was modified by another application and reload it or notify the user.
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