Provided by: libsdl3-doc_3.2.26+ds-2_all 

NAME
SDL_PLATFORM_GDK - A preprocessor macro that is only defined if compiling for Microsoft GDK on any
platform.
SYNOPSIS
#include <SDL3/SDL_platform_defines.h>
#define SDL_PLATFORM_GDK 1
AVAILABILITY
This macro is available since SDL 3.2.0.
Simple Directmedia Layer SDL 3.2.26 SDL_PLATFORM_GDK(3)