SDL_RenderLine(3)

💅 SDL_RenderLine — it's giving line drawing, bestie

okay so you wanna know about SDL_RenderLine(3)? it lives in the SDL3 FUNCTIONS section of the manual and honestly? it's iconic. it draws a line on the current rendering target at subpixel precision — like, not just whole pixels, subpixel, we're fancy here ✨

---

🌸 NAME 🌸

SDL_RenderLine — draws a line on the current rendering target at subpixel precision 💖

---

✨ SYNOPSIS ✨

#include <SDL3/SDL_render.h>

bool SDL_RenderLine(SDL_Renderer *renderer, float x1, float y1, float x2, float y2);

look at her. bool. four floats. she's beauty, she's grace 🎀

---

🫶 FUNCTION PARAMETERS 🫶

• renderer — the renderer that's gonna do the actual drawing of the line. give her the right one pls 🙈
• 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. and if it's a false? bestie, call SDL_GetError() for more info, because she will tell you what went wrong. no cap. 😭

---

🧵 THREAD SAFETY 🧵

⚠️ this function should only be called on the main thread. not the side threads, not the background threads, the main one. periodt. 👑

---

🌈 AVAILABILITY 🌈

this function is available since SDL 3.2.0 — so if you're on something older, sorry babe, she's not there yet 💔

---

👀 SEE ALSO 👀

• SDL_RenderLines(3) — the plural version, for when one line just isn't enough, iykyk 🦋

---

and that's the whole vibe check, bestie. go draw some gorgeous subpixel lines and slay 💅✨

with love from the Simple Directmedia Layer girlies, SDL 3.4.18 era, SDL_RenderLine(3) forever 🎀