Vim: is there a command to switch windows

Question

I need a : command to switch windows because I'm using it in a function. so <C-W>W won't do.

Answer 1

I had a problem with using normal <C-w>w in a function as well.

My problem was that I ran it within execute where you need to escape the first angle bracket, resulting in execute("normal \<C-w>w"). Hope this still helps some people understand it.

For more help use :help normal and :help execute in Vim

Answer 2

Using:

wincmd k

I got what I needed