In the docs for WebStorm it says Ctrl+P is to see parameter into but when I try Ctrl+P it launches the Print Dialog.
Ctrl+Q is supposed to let me see the doc of a function but when I try it, the cursor jumps around in the document. I don't know what it's doing but its not showing any doc.
I am using Windows -- how can I see parameter info or the function's comment/doc?
Those are correct shortcuts if you are using Default keymap. In your case you are using incompatible one.
Settings/Preferences | Keymap
. View
menu (Parameter Info
and Quick Documentation
actions).