A variable that specifies a video backend to use.
Defined in <SDL3/SDL_hints.h>
#define SDL_HINT_VIDEO_DRIVER "SDL_VIDEO_DRIVER"
By default, SDL will try all available video backends in a reasonable order until it finds one that can work, but this hint allows the app or user to force a specific target, such as "x11" if, say, you are on Wayland but want to try talking to the X server instead.
This hint accepts a comma-separated list of driver names, and each will be tried in the order listed during init, until one succeeds or all of them fail.
This hint should be set before SDL is initialized.
This hint is available since SDL 3.2.0.