###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!) # SDL_SetRenderDrawColorFloat Set the color used for drawing operations (Rect, Line and Clear). ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_render.h) ## Syntax ```c bool SDL_SetRenderDrawColorFloat(SDL_Renderer *renderer, float r, float g, float b, float a); ``` ## Function Parameters | | | | | ------------------------------ | ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------ | | [SDL_Renderer](SDL_Renderer) * | **renderer** | the rendering context. | | float | **r** | the red value used to draw on the rendering target. | | float | **g** | the green value used to draw on the rendering target. | | float | **b** | the blue value used to draw on the rendering target. | | float | **a** | the alpha value used to draw on the rendering target. Use [SDL_SetRenderDrawBlendMode](SDL_SetRenderDrawBlendMode) to specify how the alpha channel is used. | ## Return Value (bool) Returns true on success or false on failure; call [SDL_GetError](SDL_GetError)() for more information. ## Remarks Set the color for drawing or filling rectangles, lines, and points, and for [SDL_RenderClear](SDL_RenderClear)(). ## Thread Safety You may only call this function from the main thread. ## Version This function is available since SDL 3.1.3. ## See Also - [SDL_GetRenderDrawColorFloat](SDL_GetRenderDrawColorFloat) - [SDL_SetRenderDrawColor](SDL_SetRenderDrawColor) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryRender](CategoryRender)