xcb_glx_get_tex_parameterfv(3)

💅 xcb_glx_get_tex_parameterfv — ok bestie, let's talk

so this is a page from XCB Requests, living in the libxcb fam, and it's literally called xcb_glx_get_tex_parameterfv(3). it's the GLX "hey X server, tell me about this texture parameter" request. no cap, that's the whole vibe.

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✨ NAME ✨

xcb_glx_get_tex_parameterfv — and that's it, that's the name, the manpage itself left it blank after the dash so we're all just out here vibing 🙈

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🌸 SYNOPSIS 🌸

first things first, you gotta invite the header in:

#include <xcb/glx.h>

🎀 Request function

xcb_glx_get_tex_parameterfv_cookie_t
xcb_glx_get_tex_parameterfv(xcb_connection_t *conn,
                            xcb_glx_context_tag_t context_tag,
                            uint32_t target,
                            uint32_t pname);

🦋 Reply datastructure

the lil glow-up struct you get back:

typedef struct xcb_glx_get_tex_parameterfv_reply_t {
    uint8_t           response_type;
    uint8_t           pad0;
    uint16_t          sequence;
    uint32_t          length;
    uint8_t           pad1[4];
    uint32_t          n;
    xcb_glx_float32_t datum;
    uint8_t           pad2[12];
} xcb_glx_get_tex_parameterfv_reply_t;

💖 Reply function

xcb_glx_get_tex_parameterfv_reply_t *
xcb_glx_get_tex_parameterfv_reply(xcb_connection_t *conn,
                                  xcb_glx_get_tex_parameterfv_cookie_t cookie,
                                  xcb_generic_error_t **e);

🌈 Reply accessors

these are the little helpers that dig through the reply for you:

xcb_glx_float32_t *xcb_glx_get_tex_parameterfv_data(const xcb_glx_get_tex_parameterfv_request_t *reply);

int xcb_glx_get_tex_parameterfv_data_length(const xcb_glx_get_tex_parameterfv_reply_t *reply);

xcb_generic_iterator_t xcb_glx_get_tex_parameterfv_data_end(const xcb_glx_get_tex_parameterfv_reply_t *reply);

👀 psst — yes, xcb_glx_get_tex_parameterfv_data really does take an xcb_glx_get_tex_parameterfv_request_t * up there, not a reply. that's what the page says, so that's what we're saying. character for character, bestie.

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🔥 REQUEST ARGUMENTS 🔥

• conn — your XCB connection to X11. the whole group chat, basically.
• context_tag — TODO: NOT YET DOCUMENTED. literally the manpage's own words, i'm not gonna make stuff up for you 💀
• target — TODO: NOT YET DOCUMENTED. same energy.
• pname — TODO: NOT YET DOCUMENTED. yep. all three of them. we move.

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👑 REPLY FIELDS 👑

• response_type — the type of this reply, and in this specific case it's XCB_GLX_GET_TEX_PARAMETERFV. this field also lives inside the xcb_generic_reply_t, and you can use it to tell your replies apart from each other. it's giving name-tag at a party 🏷️
• sequence — the sequence number of the last request processed by the X11 server. the receipts, fr fr.
• length — how long the reply is, in words (and a word here is 4 bytes, keep that in your notes).
• n — TODO: NOT YET DOCUMENTED.
• datum — TODO: NOT YET DOCUMENTED.

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💜 DESCRIPTION 💜

so the DESCRIPTION section on this page is... empty. nothing. a void. the manpage said "no thoughts, head empty" and honestly? respect 🫶 we are not adding lore that isn't there.

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⭐ RETURN VALUE ⭐

you get back an xcb_glx_get_tex_parameterfv_cookie_t. it's a cookie 🍪 and like all good cookies, it's a promise of something delicious later.

errors? those have to be handled when you call the reply function xcb_glx_get_tex_parameterfv_reply.

but if you'd rather handle your errors in the event loop instead, use xcb_glx_get_tex_parameterfv_unchecked. see xcb-requests(3) for the details on that whole situation.

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💀 ERRORS 💀

good news, icon behavior: this request does never generate any errors. zero. none. a clean queen ✨

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🧚 SEE ALSO 🧚

(also empty. they really just left it there like a decorative plant 🌱)

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🌸 AUTHOR 🌸

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

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okay that's the whole page, you ate it, no crumbs left 💅✨ stay hydrated, keep your pad fields in check, and remember: pad0, pad1[4], pad2[12] are all just there so the struct sits pretty — that's on alignment, not on you, bestie 🫶

and for the sign-off: this lil masterpiece is X Version 11, libxcb 1.17.0, filed under xcb_glx_get_tex_parameterfv(3). slay, mwah 😘