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SDL Wiki

SDL_SetRenderDrawColor

Set the color used for drawing operations (Rect, Line and Clear).

Syntax

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

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). Use SDL_SetRenderDrawBlendMode to specify how the alpha channel is used

Return Value

Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.

Remarks

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

Code Examples

SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
SDL_Rect rectangle;

rectangle.x = 0;
rectangle.y = 0;
rectangle.w = 50;
rectangle.h = 50;
SDL_RenderFillRect(renderer, &rectangle);
SDL_GetRenderDrawColor
SDL_RenderClear
SDL_RenderDrawLine
SDL_RenderDrawLines
SDL_RenderDrawPoint
SDL_RenderDrawPoints
SDL_RenderDrawRect
SDL_RenderDrawRects
SDL_RenderFillRect
SDL_RenderFillRects

CategoryAPI, CategoryRender


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