My keyboard has a special play/pause key. I use it to play and pause my music. Some other programs are also responsive to it, such as my media player, but those programs have an option to disable it.

I notice if one of my messages in Caprine has a video, the play/pause button works on it. Even if program is minimized. Even if that message is not the active message. It can be a little strange to have both music and a random video playing at the same time. Or have music playing with one push, then I push it again and the video plays.

Consider adding code to block the media play/pause button from affecting Caprine videos.

Windows 7