SDL_SetGamma(3)

💖 SDL_SetGamma(3) 💖

okay bestie, welcome to the SDL API Reference — we're doing SDL_SetGamma today and honestly? it's giving brightness slider but make it ✨science✨.

🌸 NAME 🌸

SDL_SetGamma — sets the color gamma function for the display 🎀

✨ SYNOPSIS ✨

#include "SDL.h"

int SDL_SetGamma(float redgamma, float greengamma, float bluegamma);

🦋 DESCRIPTION 🦋

so what this does is it sets the "gamma function" for the display of each color component. and what IS gamma, you ask? it's the thing that controls the brightness/contrast of the colors showing up on your screen. a gamma value of 1.0 is the identity — meaning literally no adjustment happens, you get exactly what you put in. periodt. 💅

this function adjusts the gamma based on that "gamma function" parameter. but bestie, if you want to go full control-freak mode and directly specify lookup tables for your gamma adjustment, that's what SDL_SetGammaRamp is for. different vibe, same glow-up energy. ✨

⚠️ heads up: not all display hardware is able to change gamma. some screens simply said "no 💀" and there is nothing you can do about it.

🫶 RETURN VALUE 🫶

returns -1 on error — or if gamma adjustment just isn't supported by your hardware at all. so yeah, -1 is the "it didn't work, bestie 😭" signal.

👑 SEE ALSO 👑

• SDL_GetGammaRamp
• SDL_SetGammaRamp

and that's the whole page, gorgeous 🌈 this one came straight out of the SDL library, dated Tue 11 Sep 2001, 23:01 — a true vintage icon, and you just read the entire thing. slay 💖✨🎀