Cool, glad it worked :)
yeah, would be cool to take a look at the changes, feel free to share!
And, reverse engineering things is good for the soul :)
ok is almost ready to publish, still some bugs left but it'll do for a version 1.0, i just wanted to ask you if its ok if i repackage your DOSBOX-CRT folder with the demos, custom menu, etc, and simply replace your .exe with mine, and add some config files for the frame
heres the repo if you want to give it a look
https://github.com/NukeKangaroo/dosbox-crt-widescreen
oh and another preview image
https://steamcommunity.com/sharedfiles/filedetails/?id=3482516312
i added options to toggle the CRT filter, to play only with the custom frame, and an option to have the viewport fill up the screen vertically, its all set in a separate crtemu.conf file