SDL_SetRenderDrawColor - Man Page

#include <SDL3/SDL_render.h>

bool SDL_SetRenderDrawColor(SDL_Renderer *renderer, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

Set the color for drawing or filling rectangles, lines, and points, and for SDL_RenderClear().

renderer

the rendering context.

r

the red value used to draw on the rendering target.

g

the green value used to draw on the rendering target.

b

the blue value used to draw on the rendering target.

a

the alpha value used to draw on the rendering target; usually SDL_ALPHA_OPAQUE (255). Use SDL_SetRenderDrawBlendMode to specify how the alpha channel is used.

Returns true on success or false on failure; call SDL_GetError() for more information.

This function should only be called on the main thread.

This function is available since SDL 3.2.0.

SDL_GetRenderDrawColor(3), SDL_SetRenderDrawColorFloat(3)

SDL_GetRenderDrawColor(3), SDL_RenderClear(3), SDL_RenderPresent(3), SDL_SetRenderDrawColorFloat(3).