###### (This is the legacy documentation for SDL2, the previous stable version; [SDL3](https://wiki.libsdl.org/SDL3/) is the current stable version.) # SDL_CreateRenderer Create a 2D rendering context for a window. ## Header File Defined in [SDL_render.h](https://github.com/libsdl-org/SDL/blob/SDL2/include/SDL_render.h) ## Syntax ```c SDL_Renderer * SDL_CreateRenderer(SDL_Window * window, int index, Uint32 flags); ``` ## Function Parameters | | | | | -------------------------- | ---------- | ------------------------------------------------------------------------------------------------------------------ | | [SDL_Window](SDL_Window) * | **window** | the window where rendering is displayed. | | int | **index** | the index of the rendering driver to initialize, or -1 to initialize the first one supporting the requested flags. | | Uint32 | **flags** | 0, or one or more [SDL_RendererFlags](SDL_RendererFlags) OR'd together. | ## Return Value ([SDL_Renderer](SDL_Renderer) *) Returns a valid rendering context or NULL if there was an error; call [SDL_GetError](SDL_GetError)() for more information. ## Version This function is available since SDL 2.0.0. ## See Also - [SDL_CreateSoftwareRenderer](SDL_CreateSoftwareRenderer) - [SDL_DestroyRenderer](SDL_DestroyRenderer) - [SDL_GetNumRenderDrivers](SDL_GetNumRenderDrivers) - [SDL_GetRendererInfo](SDL_GetRendererInfo) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryRender](CategoryRender)