xcb_dbe_begin_idiom(3)

💖 xcb_dbe_begin_idiom — bestie edition 💖

okay so this is a page from the XCB Requests girlies, and today we're talking about xcb_dbe_begin_idiom from libxcb 1.17.0. it's a request function, it's giving "let's start something together", and yes it's from X Version 11. let's get into it 🫶

✨ NAME ✨

xcb_dbe_begin_idiom — Begins a logical swap block 💅

like. the name literally tells you. we're beginning an idiom. we're opening a block. iconic behavior.

✨ SYNOPSIS ✨

#include <xcb/dbe.h>

🎀 Request function 🎀

xcb_void_cookie_t xcb_dbe_begin_idiom(xcb_connection_t *conn,

(yes the synopsis is just Like That, no cap, we reproduce it exactly 💀)

✨ REQUEST ARGUMENTS ✨

• conn — The XCB connection to X11. that's your whole little portal to the X server, your main character connection, the link between you and everything good 🌸

✨ DESCRIPTION ✨

okay so what does it DO. it Creates a block of operations intended to occur together. periodt. a block. a little group. a squad of operations that want to be seen as one unit.

and the way that this is needed sometimes?? listen. if window presentation requires changing buffers that are unknown to this extension — like depth buffers or stencil buffers — then yeah, you're gonna want this. those buffers aren't part of this extension's business, so this is how you wrap it all up into one logical vibe 🦋

✨ RETURN VALUE ✨

it returns an xcb_void_cookie_t. and because it's a void cookie, errors (if any) have to be handled in the event loop. so don't just walk away, bestie, you gotta check in the loop 😭

and if you'd rather handle errors directly with xcb_request_check instead?? then use xcb_dbe_begin_idiom_checked instead. easy swap, no drama. see xcb-requests(3) for the details 💜

✨ ERRORS ✨

This request does never generate any errors. 🌈

not one. zero. none. clean page, no red flags, we love that for us. ✨

✨ SEE ALSO ✨

• xcb-requests(3) — go read it, it's the lore 💖

✨ AUTHOR ✨

Generated from dbe.xml. Contact xcb@lists.freedesktop.org for corrections and improvements. (so if something's off, that's the email, don't come for me, come for them, respectfully 🎀)

okay and for the sign-off moment: this whole thing is X Version 11, libxcb 1.17.0, and it's the xcb_dbe_begin_idiom(3) page. slay, ate, no crumbs left. go begin your idiom, bestie 👑💅✨