xcb_xfixes_region_extents(3)

💖 xcb_xfixes_region_extents 💖

okay bestie, so this one lives in the xcb family — specifically the XFixes extension — and it's a request function, meaning you're sending a request to the X server and getting a cookie back. The manpage is, and I say this with love, extremely sparse. Like, it's giving "we wrote the synopsis and then went to get boba." But we're gonna cover every crumb it gives us. 🍓

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✨ NAME ✨

xcb_xfixes_region_extents — and that's it. The description field is literally blank in the original, so I'm not gonna make one up for you. (iykyk)

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🌸 SYNOPSIS 🌸

First, you gotta pull in the header:

#include <xcb/xfixes.h>

🎀 Request function 🎀

xcb_void_cookie_t xcb_xfixes_region_extents(xcb_connection_t *conn,
       xcb_xfixes_region_t source, xcb_xfixes_region_t destination);

See that xcb_void_cookie_t return type? Yeah — it hands you back a cookie and no data. You deal with any errors later, in the event loop. More on that below. 💅

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🦋 REQUEST ARGUMENTS 🦋

• conn — the XCB connection to X11. Your link to the server, your main character, the whole vibe. 🔥
• source — TODO: NOT YET DOCUMENTED. yeah. that's the actual text. the docs simply did not show up. 🙈
• destination — also TODO: NOT YET DOCUMENTED. same energy. bestie, the documentation for these two is not serving. I refuse to invent behaviour that isn't in the page, so this is genuinely all we get. 😭

Real talk: if you need to know what source and destination actually do here, the manpage is not gonna tell you. That's a "go read the source / the XML" situation, fr fr.

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💜 DESCRIPTION 💜

So... this section is empty in the original. Completely. Nothing. Not a single word. 🫶

I'm not gonna fill it with guesses, because guessing at X protocol behaviour is how you end up debugging at 3am. The section exists, it's just got nothing in it. Iconic in a "the audacity" kind of way. ✨

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⭐ RETURN VALUE ⭐

You get an xcb_void_cookie_t back. Errors — if there are any — have to be handled in the event loop. That's the deal.

If you'd rather check for errors directly, right there, no event loop involved, use:

xcb_xfixes_region_extents_checked

instead. That's the checked variant. For all the deets on how that works, go see xcb-requests(3). 👑

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🌈 ERRORS 🌈

This request never generates any errors. Clean. No drama. No error codes to catch. We love a low-maintenance request. 💚

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🌸 SEE ALSO 🌸

Nothing listed here in the original — the section is empty. So there's nothing to send you off to. No links, no friends, just vibes. 🦋

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💖 AUTHOR 💖

Generated from xfixes.xml. If you spot something wrong or wanna make it better, contact xcb@lists.freedesktop.org for corrections and improvements. They're the ones to @ basically. 📧

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And that's the whole page, bestie. Short, sweet, and 90% TODO. Not my fault, I'm just the messenger. 😭💅

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X Version 11 · libxcb 1.17.0 · xcb_xfixes_region_extents(3) — mwah, take care of her, she's doing her best 🎀✨💜