SDL_SetRenderDrawColor3
Set the color used for drawing operations.
Usage
#include "SDL3/SDL.h"
bool SDL_SetRenderDrawColor(SDL_Renderer *renderer, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
Header file
Defined in SDL3/SDL_render.h
Overview
Set the color for drawing or filling rectangles, lines, and points, and for
SDL_RenderClear ().
Function parameters
- 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). UseSDL_SetRenderDrawBlendMode
to specify how the alpha channel is used.
Return value
Returns true on success or false on failure; call
SDL_GetError () for more information.
Thread safety
This function should only be called on the main thread.