ID:2185356
 
Is there somewhere with explanations of the various windows that you can size and place in skin.dmf? I'm trying to use the << operator to output text to the player's text window but can't seem to get it to work. usr << "Text" does not output the text whenever I run the verb during runtime. I suppose that's my main issue, but I also want to get an explanation of what each window does.
For your issue look into the output() proc.

This resource covers basically everything you can do with skin files: http://www.byond.com/docs/ref/skinparams.html
Thank you for the output() advice, but I'm wondering why << and a text string doesn't automatically output the information?
Is the "text window" an output control? If so, make sure the "Default" option is ticked for it inside the interface. There should be only a single "default" output control. Additional output controls require you to use the output() proc, as Reformist said.