Question

How can you use an android phone to control VLC media player?

Answer 1

It seems that it's impossible for you to remote control any software tool on PC with phone except PPT. 

BTW, You can have a check at this article offering 10 alternatives to VLC if you want.

Answer 2

Before installing the Android app VLC Remote, you must first make some changes to the default VLC application on your computer to enable your phone to properly detect VLC. Open VLC and click on Tools > Preferences. Next, select All under Show settings.