Hook keyboard shortcuts from Windows lock screen

问题

I have an arduino in keyboard emulation mode that sends keyboard keystrokes to the computer it's connected to, the latter appending a log line in a local webpage upon receiving each keystroke. The log program is coded in C using Win32 API.

Now, since it's supposed to function at work (the idea is to get a log file online of when pushbuttons on my desk have been activated), I will be locking my computer...

How can I keep processing CTRL+ALT+key strokes from the windows lock screen?

Thanks, Mister Mystère

回答1:

This seems to work: https://www.codeproject.com/Articles/19004/A-Simple-C-Global-Low-Level-Keyboard-Hook

When you run the compiled executable, the keys A and B are detected globally even when the screen is locked.

回答2:

I ended up downloading a third party lock screen and my program works in its background as it is a standard program. For those of you in the same situation, as far as I know after all that research I'm afraid you'll have to do that instead: it seems like it is not possible starting from Vista.

来源：https://stackoverflow.com/questions/21797347/hook-keyboard-shortcuts-from-windows-lock-screen