Software that enables me to cue and play out video and image output to a projector, without playback controls, the Windows UI, or Windows sounds getting in the way. And which enables me to quickly flick off to a black screen.
Closest I've come is VLC with a split video interface in full screen, but it isn't perfect.
There are a bunch of video DJ suites out there that can do way more than what you need but they all cost about $300. There is an open source software called Snowmix that might do what you want. Interestingly, the project is run by an amateur manned space program.
Closest I've come is VLC with a split video interface in full screen, but it isn't perfect.