SDL_GetRenderMetalLayer - Get the CAMetalLayer associated with the given Metal renderer.

       This function is available since SDL 3.2.0.

       This  function  returns void*, so SDL doesn't have to include Metal's headers, but it can be safely cast
       to a CAMetalLayer*.

renderer
              the renderer to query.

       SDL_GetRenderMetalLayer - Get the CAMetalLayer associated with the given Metal renderer.

       Returns a CAMetalLayer* on success, or NULL if the renderer isn't a Metal renderer.

SDL_GetRenderMetalCommandEncoder(3)

Simple Directmedia Layer                           SDL 3.2.20                         SDL_GetRenderMetalLayer(3)

#include<SDL3/SDL_render.h>void*SDL_GetRenderMetalLayer(SDL_Renderer*renderer);

       This function should only be called on the main thread.