SDL_GetWindowDisplayScale - Get the content display scale relative to a window's pixel size.

       This function is available since SDL 3.2.0.

Simple Directmedia Layer                           SDL 3.2.20                       SDL_GetWindowDisplayScale(3)

       This  is  a  combination  of  the window pixel density and the display content scale, and is the expected
       scale for displaying content in this window. For example, if a 3840x2160 window had a  display  scale  of
       2.0,  the  user  expects  the content to take twice as many pixels and be the same physical size as if it
       were being displayed in a 1920x1080 window with a display scale of 1.0.

       Conceptually this value corresponds to the scale display setting, and is updated  when  that  setting  is
       changed, or the window moves to a display with a different scale setting.

window the window to query.

       SDL_GetWindowDisplayScale - Get the content display scale relative to a window's pixel size.

       for more information.

#include<SDL3/SDL_video.h>floatSDL_GetWindowDisplayScale(SDL_Window*window);

       This function should only be called on the main thread.