I looked through several chats about screen resolution but can't figure it out?

[acmehole]

I searched through and through and even found an article about the game "Journey Down" using custom code to allow larger screen resolutions. Another chat mentioned that it is or will be available in the main application.

Can someone set me straight on a few things screen resolution?

1. What is the best or highest achievable resolution at this time (I know what the options are in the settings, but I'm not sure if I'm missing some hidden option or something).

2. If I work on a game with let's say one of the lower resolutions, how can I play it at a scaled resolution. How would I for example switch to x2 or x3 resolution. I saw some chats about this, but I'm not sure I understood if this is an option or requires custom code.

[Ghost]

If you are using the last "official" release of AGS (3.2.1), the highest possible resolution is 1024x768. It is not often used; most people prefer low-res (320x240 or even 320x200). The reason is less performance, but mostly low resolution looks great with good clean pixel art. If your question is which resolution works best with your game- well, it's really a matter of personal preferrence. I daresay any somewhat modern computer can run an AGS game in 1024x without problems.

Higher resolutions are implemented in the current beta, and IIRC there's been a lot of talk about true widescreen support, too.

Note: If you want custom screen resolutions, you need the actual source for AGS, a solid understanding of programming, and you will have to build your own "version" of AGS to get them. There is no way to implement new resolutions in AGS Script or a "secret hack" by editing some ini file.
This is absolutely possible, btw. The AGS source code has been released and you can compile it with the free version of Visual Studio. Also, there are builds like the Draconian Edition and AGS 3.3 Beta that (again, IIRC) already have higher resolutions implemented and are reportedly stable.

Scaling is simply a filter that you select in the setup program, winsetup.exe, which is located in your game's compiled folder (or the game folder if you downloaded a game). Scaling means exactly what it says on the tin, each pixel is scaled to x2/x3/x4 its actual size. This required no custom code either. It's very convenient to use if your screen can't run low-res games fullscreen or if the very tiny window (windowed mode) makes you squint.