Re: Is alt + p a nvda or a Windows command?
Very likely neither. Not always, but very often, commands that take actions in programs are program commands. Those that take actions in Windows are Windows commands. Screen-readers tell you what is on-screen, give you ways to review the information or to work with it such as browse mode, to compensate for there being no good way to do so if the screen-reader doesn't provide its own interface, and allows you to read specific things, such as the title bar or the clock that a sighted person would look at.
Consider the context. Someone is giving a demonstration. It appears the person is using some sort of program to allow multiple people to listen. So he is very likely using a program command for the program he is using for that purpose.
Just what that command does, I'm not sure. Try looking through the menus if you are using the same program. This sort of approach and information may help you look around programs and learn about them.
----- Original Message -----
I was listening to a demo of some software when someone
needed to upload a file from their computer to an attached radio
and they used alt + p. This gives you two alternatives, r and w
which is easy enough to follow so far except that I get that
unceremonious dumpout you get when you hit the wrong button and
the effect is the same as typing Escape. You just go back to
whatever was going on before typing alt + p.