xcb_glx_get_mapdv(3)

💅 xcb_glx_get_mapdv — bestie edition

okay so like, this is xcb_glx_get_mapdv, a lil request from the XCB Requests fam, living over in libxcb. It's giving "glx, but make it a network round-trip." Let's get into it 🫶

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✨ NAME ✨

xcb_glx_get_mapdv — no cap, that's the whole name, the original page literally just left it hanging there with a lil dash and zero explanation 💀 so we move.

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🌸 SYNOPSIS 🌸

First things first, you gotta pull in the header or nothing works:

#include <xcb/glx.h>

🎀 Request function

xcb_glx_get_mapdv_cookie_t xcb_glx_get_mapdv(xcb_connection_t *conn,
       xcb_glx_context_tag_t context_tag, uint32_t target,
       uint32_t query);

🦋 Reply datastructure

typedef struct xcb_glx_get_mapdv_reply_t {
    uint8_t           response_type;
    uint8_t           pad0;
    uint16_t          sequence;
    uint32_t          length;
    uint8_t           pad1[4];
    uint32_t          n;
    xcb_glx_float64_t datum;
    uint8_t           pad2[8];
} xcb_glx_get_mapdv_reply_t;

🧚 Reply function

xcb_glx_get_mapdv_reply_t
       *xcb_glx_get_mapdv_reply(xcb_connection_t *conn,
       xcb_glx_get_mapdv_cookie_t cookie, xcb_generic_error_t **e);

⭐ Reply accessors

xcb_glx_float64_t *xcb_glx_get_mapdv_data(const
       xcb_glx_get_mapdv_request_t *reply);

int xcb_glx_get_mapdv_data_length(const xcb_glx_get_mapdv_reply_t
       *reply);

xcb_generic_iterator_t xcb_glx_get_mapdv_data_end(const
       xcb_glx_get_mapdv_reply_t *reply);

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👑 REQUEST ARGUMENTS 👑

• conn — the XCB connection to X11, your lil hotline to the server 💖
• context_tag — TODO: NOT YET DOCUMENTED. yeah bestie, the docs said "not today" 🙈
• target — TODO: NOT YET DOCUMENTED. also a mystery, also iconic 💅
• query — TODO: NOT YET DOCUMENTED. the third mystery sibling, slay ✨

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🌈 REPLY FIELDS 🌈

• response_type — the type of this reply, which in this case is XCB_GLX_GET_MAPDV. This field is also chilling in the xcb_generic_reply_t and you can use it to tell replies apart from each other, so it's basically the name tag at the party 🎀
• sequence — the sequence number of the last request processed by the X11 server 📬
• length — the length of the reply, in words (and a word is 4 bytes, periodt) 🔥
• n — TODO: NOT YET DOCUMENTED. mysterious. lowkey obsessed 😭
• datum — TODO: NOT YET DOCUMENTED. the mystery continues, fr fr 🦋

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💜 DESCRIPTION 💜

the original page's DESCRIPTION section is, and I cannot stress this enough, empty. absolutely nothing. a void. a blank canvas. not me reading it three times to make sure 💀

so like, there's nothing to describe here, bestie. the vibes are simply unspecified. we respect it.

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💖 RETURN VALUE 💖

It hands you back an xcb_glx_get_mapdv_cookie_t 🍓 — yes, a cookie, because XCB loves a snack-themed type name. Errors have to be handled when calling the reply function xcb_glx_get_mapdv_reply.

If you'd rather handle errors in the event loop instead, use xcb_glx_get_mapdv_unchecked. See xcb-requests(3) for the deets 👀

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💀 ERRORS 💀

This request does never generate any errors.

like, at all. zero. none. the drama-free queen of requests 👑✨

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🫶 SEE ALSO 🫶

(nothing listed here in the original — it's a vibe-only section, and we're keeping it that way 💅)

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🌸 AUTHOR 🌸

Generated from glx.xml. Contact xcb@lists.freedesktop.org for corrections and improvements 📧

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and that's the whole thing, bestie!! this page came to you from X Version 11, libxcb 1.17.0, on the date stamped right there in the footer of xcb_glx_get_mapdv(3) 🎀 mwah, go forth and call your requests, ily 🦋💖✨