Ok I did do a search but I coulndt find/figure out a definitive answer to my problem.
I set the game resolution to 320x240, which doesnt seem to do anything as rooms are still 320x200 be default.
So is the only solution to make background images at 320x240 with 40 pixels of black at the bottom (where the gui would be)? Or is there a way so that I can just use my 320x200 images to put in the 320x240 room so that I can then use the remaining spot for my GUI?
You mean you're using 320x200 backgrounds, but the game is set to 320x240?
In this case, I believe AGS treats the room as 320x200 letter-boxed - so yes, the only solution is to actually add 40 pixels to the image.
Well that's sort of what I mean, I'll try to explain again.
The game is set to 320x240 but all rooms default to 320x200 (which I guess is normal for some reason). So what I'm really asking is how to sucessfully make a game that is actually 320x240. Is the way to do it by pasting a 320x240 image as the rooms background for each room, with blank space at the bottom?
IE there's no way to just have the default (even when no background is present) be at 320x240, since it will always do 320x200 anyways?
You need to import a bg with vertical res. 240 to make the room that size, even if you need just a black background you need to import an image of 320x240 of black colour to make it work.
However, you don't need to do it for all the rooms, just start a new room, import the bg of appropiate size, and name it _blank.crm in your game's folder.
Next time when you create a new room the editor will use _blank.crm as a template.