Detect if cursor is in an input field?

[MarkPhil]

I spend a lot of time reading PDFs and I've tried implementing Vim-style keybindings for scrolling, etc. while in my PDF reader. The problem is that when I go to type in a comment or search box, I need to remember to suspend my script. Is there a way AHK can detect whether the cursor is in a text input field or not, so that I can tell AHK not to apply the new keybindings when I'm entering text? I looked around in the forums and the documentation but didn't see anything like this.

[BoBo]

You/the script has to be able to detect the control that is currently active in real-time (SetTimer) to decide if to toggle your keybindings.
Use AHK's winSpy (or whatever equivalent to identify those controls IDs). Good luck