Provided by: libsdl3-doc_3.2.20+ds-2_all 

NAME
SDL_RenderClear - Clear the current rendering target with the drawing color.
SYNOPSIS
#include <SDL3/SDL_render.h>
bool SDL_RenderClear(SDL_Renderer *renderer);
DESCRIPTION
This function clears the entire rendering target, ignoring the viewport and the clip rectangle. Note,
that clearing will also set/fill all pixels of the rendering target to current renderer draw color, so
make sure to invoke SDL_SetRenderDrawColor() when needed.
FUNCTION PARAMETERS
renderer
the rendering context.
RETURN VALUE
for more information.
THREAD SAFETY
This function should only be called on the main thread.
AVAILABILITY
This function is available since SDL 3.2.0.
SEE ALSO
SDL_SetRenderDrawColor(3)
Simple Directmedia Layer SDL 3.2.20 SDL_RenderClear(3)