Provided by: libsdl3-doc_3.2.8+ds-1_all 

NAME
SDL_WINDOWPOS_ISCENTERED - A macro to test if the window position is marked as "centered."
HEADER FILE
Defined in SDL3/SDL_video.h
SYNOPSIS
#include "SDL3/SDL.h" #define SDL_WINDOWPOS_ISCENTERED(X) .BI (((X)&0xFFFF0000)==SDL_WINDOWPOS_CENTERED_MASK)
AVAILABILITY
This macro is available since SDL 3.2.0. Simple Directmedia Layer SDL 3.2.8 SDL_WINDOWPOS_ISCENTERED(3)