A variable forcing the content scaling factor for X11 displays.
Defined in <SDL3/SDL_hints.h>
#define SDL_HINT_VIDEO_X11_SCALING_FACTOR "SDL_VIDEO_X11_SCALING_FACTOR"
The variable can be set to a floating point value in the range 1.0-10.0f
This hint should be set before SDL is initialized.
This hint is available since SDL 3.1.3.