did you check the various handheld ports that are made of dosbox ?
like for the PSP, Nokia N80, s60 and a few more ?

Especially pay attention to what they're doing to sdlmain.cpp in dosbox/src/gui,
the SDL_SetVideoMode calls are triggering your current E_Exit.

and how would I convince DOSBox to display everything with a 90 degree CCW turn?

I assume you don't want to display 320x240 on a 240x320 display? Otherwise it
should "simply work" as what SDL is doing.

I have not looked at the ports to other handhelds yet. I will see if I can check out their source for some of those files and see if I can determine what would need to be changed. Thanks for that recommendation.

For the display on the zipit it is set to be 320x240, It would just look better if I could get it to turn. Here are a couple of pictures for example. Sorry they are not cleaner.

http://home.comcast.net/~absamide/ZipitZ2.jpg

http://home.comcast.net/~absamide/Z2Dosbox.jpg

The second picture is where I have started DOSBox and it switched my screen around even though I already have exported environment variables in SDL to set it to display correctly. Apparently DOSBox is resetting those variables, or setting them to something else when it is executed.

Thanks for the information.

The second picture is where I have started DOSBox and it switched my screen around even though I already have exported environment variables in SDL to set it to display correctly.

That looks like an SDL problem to me, there's nothing in dosbox that forces
a special screen orientation. Check what video mode is requested for that
look (a possibly modified video mode, on a regular system dosbox would
request a 640x400 video mode) and what a simple SDL test application
produces when directly setting that mode.

I faced a similar problem when I was porting DOSBox to A320/Nanonote.

Here's what I did:

I forced the main screen to be the native size of your LCD screen:

sdl.surface=SDL_SetVideoMode(320,240,0,SDL_SWSURFACE);

Subsequent calls to changing video mode are replaced with creating a surface instead. ie

sdl.surface=SDL_CreateRGBSurface(SDL_SWSURFACE,width,height,bpp,rmask,gmask,bmask,0xff);

I then #define SDL_Flip with my own blit routine which either copies the screen directly if the resolution is <= 320x240 or does some scaling if it's larger.

Thanks. What I am using to get things to look right in the screens currently is:

SDL_VIDEO_FBCON_ROTATION="CCW" which sets it to show up correctly. I am wondering if I need to incorporate that somewhere into DOSBox for my particular setup. Not really sure just how rough it would be or if it would be a simple addition once the video has been initialized.

I will have to look into those options and see what I can make work.

I am wondering if I need to incorporate that somewhere into DOSBox for my particular setup.

There should be already some setenv of SDL variables in sdlmain.cpp,
just be sure it's done before SDL is initialized.