Simulate a video projector

Hi, I'm new here so nice to meet you

I need to simulate a video projection in cinema4d but couldn't find any satisfying solution... what I need is being able to have an image or video projected in a spot light.. I tried to add my texture to the spot light, it didn't work, then I tried to make a transparent texture, same, then I tried to apply this texture to a flat object in front of the spot light, same problem...

I need to use a spot light as I need to be able to have a visible light and the texture projected on a surface

thanks! and sorry if my english is not clear, I'm not used to talk such techincal things in english