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

NAME
SDL_RenderLine - Draw a line on the current rendering target at subpixel precision.
HEADER FILE
Defined in SDL3/SDL_render.h
SYNOPSIS
#include "SDL3/SDL.h" bool SDL_RenderLine(SDL_Renderer *renderer, float x1, float y1, float x2, float y2);
FUNCTION PARAMETERS
renderer the renderer which should draw a line. x1 the x coordinate of the start point. y1 the y coordinate of the start point. x2 the x coordinate of the end point. y2 the y coordinate of the end point.
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_RenderLines(3) Simple Directmedia Layer SDL 3.2.8 SDL_RenderLine(3)