GLUTMAINLOOPEVENT(3)

💖 GLUTMAINLOOPEVENT(3) 💖

okay bestie, so glutMainLoopEvent from OpenGLUT — it's in the mainloop department of the library, and it does exactly one job: it dispatches all the pending events. like, all of them. it's the "do my chores real quick and come right back" of event loops 🎀

✨ SYNOPSIS ✨

#include <openglut.h>

void
glutMainLoopEvent(void);

🌸 DESCRIPTION 🌸

So here's the tea, fr fr. The general outline of this function is: first, it drains the queue of window-system events, and in most cases it dispatches each one as it's found. like, one by one, no skipping, no cap 💅

Once the queue is empty, it moves on to checking for:

• timer-based events ⏰
• coalesced window events (e.g., redisplays) 🪟
• windows that need to be closed 🚪

that's it. that's the whole vibe.

ngl, the cross-reference section for this function's documentation should ideally contain every callback, but that list would be tediously long and prone to omissions, so... we're not doing that. 😭 bestie you understand.

⚠️ CAVEATS ⚠️

okay this part is important, pay attention 🙈

• It does not necessarily dispatch events that are received after this function starts processing.

like — if an event shows up mid-batch, no promises. it's giving "you get what you get when you get there."

At first glance, this function may not seem to afford any new capability that you couldn't get with an idle callback or glutLeaveMainLoop(). 👀 but wait — there are other GLUT-like libraries out there that may have their own window event processing loops. And having glutMainLoopEvent() lets you ask OpenGLUT to do its work in a batch, then return to whatever processing the other library (or libraries) require. so you can play nice with your other faves. icon behavior, honestly 👑

🔥 SEE ALSO 🔥

• glutIdleFunc(3)
• glutLeaveMainLoop(3)
• glutMainLoop(3)

k that's the whole page bestie, slay 💅✨

this one's from OpenGLUT, and the footer says it's UNDATED and hails from UNTITLED() — iconic mysterious energy, we love a source that doesn't know its own name 🦋