I've looked for solutions in the entire forum, but I can't seem to get any to work. My project will be fullscreen when my monitor is set to a lower resolution, but when I set it to 1080p then it puts the game in windowed mode.
Is there a module or code I can implement to force the game to fullscreen (non-stretched, just cropped with black)?
EDIT: I finally came across this post that made me realize what was going on:
http://www.adventuregamestudio.co.uk/forums/index.php?topic=35288.msg494992#msg494992
I simply changed "while running without debugger" to "Always fullscreen". You can also set it to what you have as the .cfg after compiling. Another way I found out that it wasn't anything I had to change within the game was that after running the compiled .exe it would always run in fullscreen =].
We could've told you that on the spot, but you were asking for non-stretched and black borders, which has been suggested a couple of times but not been implemented yet.
If fullscreen works for you, all the better.