###### (This is the legacy documentation for SDL2, the previous stable version; [SDL3](https://wiki.libsdl.org/SDL3/) is the current stable version.) # SDL_RenderFillRect Fill a rectangle on the current rendering target with the drawing color. ## Header File Defined in [SDL_render.h](https://github.com/libsdl-org/SDL/blob/SDL2/include/SDL_render.h) ## Syntax ```c int SDL_RenderFillRect(SDL_Renderer * renderer, const SDL_Rect * rect); ``` ## Function Parameters | | | | | ------------------------------ | ------------ | --------------------------------------------------------------------------------------------------------------- | | [SDL_Renderer](SDL_Renderer) * | **renderer** | the rendering context. | | const [SDL_Rect](SDL_Rect) * | **rect** | the [SDL_Rect](SDL_Rect) structure representing the rectangle to fill, or NULL for the entire rendering target. | ## Return Value (int) Returns 0 on success or a negative error code on failure; call [SDL_GetError](SDL_GetError)() for more information. ## Remarks The current drawing color is set by [SDL_SetRenderDrawColor](SDL_SetRenderDrawColor)(), and the color's alpha value is ignored unless blending is enabled with the appropriate call to [SDL_SetRenderDrawBlendMode](SDL_SetRenderDrawBlendMode)(). ## Version This function is available since SDL 2.0.0. ## See Also - [SDL_RenderDrawLine](SDL_RenderDrawLine) - [SDL_RenderDrawLines](SDL_RenderDrawLines) - [SDL_RenderDrawPoint](SDL_RenderDrawPoint) - [SDL_RenderDrawPoints](SDL_RenderDrawPoints) - [SDL_RenderDrawRect](SDL_RenderDrawRect) - [SDL_RenderDrawRects](SDL_RenderDrawRects) - [SDL_RenderFillRects](SDL_RenderFillRects) - [SDL_RenderPresent](SDL_RenderPresent) - [SDL_SetRenderDrawBlendMode](SDL_SetRenderDrawBlendMode) - [SDL_SetRenderDrawColor](SDL_SetRenderDrawColor) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryRender](CategoryRender)