Man page - sdl_setrenderdrawcolorfloat(3)

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

Defined in SDL3/SDL_render.h

#include "SDL3/SDL.h"

bool SDL_SetRenderDrawColorFloat(SDL_Renderer *renderer, float r, float g, float b, float 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. 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.