###### (This is the legacy documentation for SDL2, the previous stable version; [SDL3](https://wiki.libsdl.org/SDL3/) is the current stable version.) # SDL_RenderGetMetalLayer Get the CAMetalLayer associated with the given Metal renderer. ## Header File Defined in [SDL_render.h](https://github.com/libsdl-org/SDL/blob/SDL2/include/SDL_render.h) ## Syntax ```c void* SDL_RenderGetMetalLayer(SDL_Renderer * renderer); ``` ## Function Parameters | | | | | ------------------------------ | ------------ | ---------------------- | | [SDL_Renderer](SDL_Renderer) * | **renderer** | The renderer to query. | ## Return Value (void *) Returns a `CAMetalLayer *` on success, or NULL if the renderer isn't a Metal renderer. ## Remarks This function returns `void *`, so SDL doesn't have to include Metal's headers, but it can be safely cast to a `CAMetalLayer *`. ## Version This function is available since SDL 2.0.8. ## See Also - [SDL_RenderGetMetalCommandEncoder](SDL_RenderGetMetalCommandEncoder) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryRender](CategoryRender)