Man page - sdl_hint_video_x11_scaling_factor(3)

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SDL_HINT_VIDEO_X11_SCALING_FACTOR - A variable forcing the content scaling factor for X11 displays.

Defined in SDL3/SDL_hints.h

#include "SDL3/SDL.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 3.2.0.