Provided by: libsdl3-doc_3.2.8+ds-1_all 

NAME
SDL_RenderFillRect - Fill a rectangle on the current rendering target with the drawing color at subpixel precision.
HEADER FILE
Defined in SDL3/SDL_render.h
SYNOPSIS
#include "SDL3/SDL.h" bool SDL_RenderFillRect(SDL_Renderer *renderer, const SDL_FRect *rect);
FUNCTION PARAMETERS
renderer the renderer which should fill a rectangle. rect a pointer to the destination rectangle, or NULL for the entire rendering target.
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.
AVAILABILITY
This function is available since SDL 3.2.0.
SEE ALSO
•(3), SDL_RenderFillRects(3) Simple Directmedia Layer SDL 3.2.8 SDL_RenderFillRect(3)