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SDL_WINDOWPOS_CENTERED_DISPLAY

Used to indicate that the window position should be centered.

#include <SDL3/SDL_video.h>
#define SDL_WINDOWPOS_CENTERED_DISPLAY(X)  (SDL_WINDOWPOS_CENTERED_MASK|(X))

SDL_WINDOWPOS_CENTERED is the same, but always uses the primary display instead of specifying one.

the SDL_DisplayID of the display to use.

This macro is available since SDL 3.2.0.

SDL_SetWindowPosition(3)