1Tk_GetJoinStyle(3) Tk Library Procedures Tk_GetJoinStyle(3)
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8 Tk_GetJoinStyle, Tk_NameOfJoinStyle - translate between strings and
9 join styles
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12 #include <tk.h>
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14 int
15 Tk_GetJoinStyle(interp, string, joinPtr)
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17 const char *
18 Tk_NameOfJoinStyle(join)
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21 Tcl_Interp *interp (in) Interpreter to use for error report‐
22 ing.
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24 const char *string (in) String containing name of join style
25 - one of “bevel”, “miter”, or “round”
26 - or a unique abbreviation of one.
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28 int *joinPtr (out) Pointer to location in which to store
29 X join style corresponding to string.
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31 int join (in) Join style: one of JoinBevel, Join‐
32 Miter, JoinRound.
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36 Tk_GetJoinStyle places in *joinPtr the X join style corresponding to
37 string, which will be one of JoinBevel, JoinMiter, or JoinRound. Join
38 styles are typically used in X graphics contexts to indicate how adja‐
39 cent line segments should be joined together. See the X documentation
40 for information on what each style implies.
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42 Under normal circumstances the return value is TCL_OK and interp is un‐
43 used. If string does not contain a valid join style or an abbreviation
44 of one of these names, then an error message is stored in interpreter
45 interp's result, TCL_ERROR is returned, and *joinPtr is unmodified.
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47 Tk_NameOfJoinStyle is the logical inverse of Tk_GetJoinStyle. Given a
48 join style such as JoinBevel it returns a statically-allocated string
49 corresponding to join. If join is not a legal join style, then “un‐
50 known join style” is returned.
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53 bevel, join style, miter, round
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57Tk Tk_GetJoinStyle(3)