Provided by: libsdl3-doc_3.2.20+ds-2_all 

NAME
SDL_HINT_ORIENTATIONS - A variable controlling which orientations are allowed on iOS/Android.
SYNOPSIS
#include <SDL3/SDL_hints.h>
#define SDL_HINT_ORIENTATIONS "SDL_ORIENTATIONS"
DESCRIPTION
In some circumstances it is necessary to be able to explicitly control which UI orientations are allowed.
This variable is a space delimited list of the following values:
• "LandscapeLeft"
• "LandscapeRight"
• "Portrait"
• "PortraitUpsideDown"
This hint should be set before SDL is initialized.
AVAILABILITY
This hint is available since SDL 3.2.0.
Simple Directmedia Layer SDL 3.2.20 SDL_HINT_ORIENTATIONS(3)