SDL_RenderViewportSet(3)

💖 SDL_RenderViewportSet(3) 💖

Welcome to the SDL3 FUNCTIONS manual, bestie. This one is short, sweet, and weirdly specific. Periodt.

---

✨ NAME ✨

SDL_RenderViewportSet — return whether an explicit rectangle was set as the viewport. That's it. That's the whole job.

---

🌸 SYNOPSIS 🌸

#include <SDL3/SDL_render.h>

bool SDL_RenderViewportSet(SDL_Renderer *renderer);

---

🦋 DESCRIPTION 🦋

Okay so this is the little detective function you call when you're saving and restoring the viewport and want to know whether you should restore a specific rectangle or NULL. No cap.

Each render target has its own viewport. This function checks the viewport for the current render target. Current. Render. Target. Don't forget it, iykyk.

---

🎀 FUNCTION PARAMETERS 🎀

• renderer — the rendering context. That's the whole parameter list. Iconic minimalism.

---

👑 RETURN VALUE 👑

Returns true if the viewport was set to a specific rectangle, or false if it was set to NULL (the entire target). Truthy rectangle vs. whole-target NULL energy.

---

💅 THREAD SAFETY 💅

This function should only be called on the main thread. Main thread only, bestie. Do not go wild in a worker thread. That's not the vibe.

---

⭐ AVAILABILITY ⭐

This function is available since SDL 3.2.0. Ancient? No. Just vintage enough.

---

🌈 SEE ALSO 🌈

• SDL_GetRenderViewport(3)
• SDL_SetRenderViewport(3)

---

xoxo, this page was served fresh from Simple Directmedia Layer, version SDL 3.4.18, and the footer energy of SDL_RenderViewportSet(3). Date? The SDL 3.4.18 moment, obviously. 💖