Tk_GetJoinStyle(3)

✨ Tk_GetJoinStyle ✨

okay bestie, welcome to the Tk_GetJoinStyle(3) page from the Tk Library Procedures 💅 this one's all about translating between strings and join styles, and honestly? it's giving "small but iconic" 🎀

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🌸 NAME 🌸

Tk_GetJoinStyle, Tk_NameOfJoinStyle — the little duo that translates between strings and join styles 🦋 like, one goes string ➡️ style, the other goes style ➡️ string. bestie behavior, fr fr.

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⭐ SYNOPSIS ⭐

#include <tk.h>

int
Tk_GetJoinStyle(interp, string, joinPtr)

const char *
Tk_NameOfJoinStyle(join)

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🎀 ARGUMENTS 🎀

• Tcl_Interp *interp (in) — the interpreter you use for error reporting. it just hangs out and holds the error messages for you 🫶
• const char *string (in) — a string with the name of a join style, and it's one of “bevel”, “miter”, or “round” — or honestly any unique abbreviation of one of those, we're not picky ✨
• int *joinPtr (out) — pointer to the spot where we stash the X join style that corresponds to string 💖
• int join (in) — the join style itself, like one of JoinBevel, JoinMiter, JoinRound 👑

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💜 DESCRIPTION 💜

So Tk_GetJoinStyle places in *joinPtr the X join style corresponding to string, which is gonna be one of JoinBevel, JoinMiter, or JoinRound. join styles are typically used in X graphics contexts to show how adjacent line segments should be joined together — like literally how the lines hug at the corners, iykyk 🌈 and yeah, see the X documentation for what each style actually implies, that's not our lore to spill.

Under normal circumstances the return value is TCL_OK and interp is just... unused. sitting there. main character energy but no lines 😭 But! if string doesn't contain a valid join style, or an abbreviation of one of these names, then an error message gets stored in interpreter interp's result, TCL_ERROR is returned, and *joinPtr is left unmodified. no cap, it stays exactly as it was 🫶

Tk_NameOfJoinStyle is the logical inverse of Tk_GetJoinStyle. give it a join style like JoinBevel and it returns a statically-allocated string corresponding to join ✨ and if join is not a legal join style? then “unknown join style” is returned. that's it, that's the whole vibe 💀

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🔥 KEYWORDS 🔥

bevel, join style, miter, round 👑

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bestie reminder: the valid strings are literally only “bevel”, “miter”, and “round” (or a unique abbreviation) — don't come at it with anything else or you get TCL_ERROR and *joinPtr stays untouched 🙈

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and that's the page!! mwah 💋 this was Tk, and the doc is from Tk_GetJoinStyle(3) — go forth and join those segments, you're gonna slay 🧚‍♀️💖