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+--- Thread: How would I use Watchdog to get triggered when DVD is inserted? (/thread-34619.html)
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RE: How would I use Watchdog to get triggered when DVD is inserted? - Daring_T - Aug-17-2021
(Aug-16-2021, 08:50 PM)deanhystad Wrote: Is the DVD going to show up as D: or does it show up in D:? If it shows up as D: I don't think you can use watchdog to see when a DVD is installed. Sure, you can keep trying to start the observer and it will fail until a DVD is installed, but you get the same info trying to read the D:\\ folder.
In a windows program you would use the RegisterDeviceNotification call. I don't know of any python wrapper library for this system call.
So Python does have ways to access dll functions with ctypes. I may just make a wrapper myself but will see. I might even write this trigger in C or C++ just to learn these languages. I do know I'm going to need a lot more research before I figure this one out.
RE: How would I use Watchdog to get triggered when DVD is inserted? - DeaD_EyE - Aug-17-2021
I think you can't use the Watchdog to observe media Changes.
Polling the directory the whole time is ineffective and if a CD is in your drive, it will always spin up during polling. This can be very annoying.
You have to use the win32 subsystem and a guy made already the work: https://abdus.dev/posts/python-monitor-usb/
RE: How would I use Watchdog to get triggered when DVD is inserted? - Daring_T - Aug-17-2021
(Aug-17-2021, 08:15 AM)DeaD_EyE Wrote: I think you can't use the Watchdog to observe media Changes.
Polling the directory the whole time is ineffective and if a CD is in your drive, it will always spin up during polling. This can be very annoying.
You have to use the win32 subsystem and a guy made already the work: https://abdus.dev/posts/python-monitor-usb/
Thank you DeaD_EyE, this should work very well for what I am trying to do. It's weird, he's already has written half the functions & classes I have already wrote.