(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_GetRenderMetalCommandEncoder

Get the Metal command encoder for the current frame.

Header File

Syntax

void * SDL_GetRenderMetalCommandEncoder(SDL_Renderer *renderer);

Function Parameters

SDL_Renderer *

renderer

the renderer to query.

Return Value

(void *) Returns an id<MTLRenderCommandEncoder> on success, or NULL if the renderer isn't a Metal renderer or there was an error.

Remarks

This function returns void *, so SDL doesn't have to include Metal's headers, but it can be safely cast to an id<MTLRenderCommandEncoder>.

This will return NULL if Metal refuses to give SDL a drawable to render to, which might happen if the window is hidden/minimized/offscreen. This doesn't apply to command encoders for render targets, just the window's backbuffer. Check your return values!

Thread Safety

You may only call this function from the main thread.

Version

This function is available since SDL 3.1.3.