1Tk_GetCapStyle(3)            Tk Library Procedures           Tk_GetCapStyle(3)
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NAME

8       Tk_GetCapStyle,  Tk_NameOfCapStyle  - translate between strings and cap
9       styles
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SYNOPSIS

12       #include <tk.h>
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14       int
15       Tk_GetCapStyle(interp, string, capPtr)
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17       const char *
18       Tk_NameOfCapStyle(cap)
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ARGUMENTS

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 cap style -
25                                        one  of   “butt”,   “projecting”,   or
26                                        “round”  - or a unique abbreviation of
27                                        one.
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29       int *capPtr (out)                Pointer to location in which to  store
30                                        X cap style corresponding to string.
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32       int cap (in)                     Cap style: one of CapButt, CapProject‐
33                                        ing, or CapRound.
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DESCRIPTION

37       Tk_GetCapStyle places in *capPtr  the  X  cap  style  corresponding  to
38       string.   This  will  be  one  of the values CapButt, CapProjecting, or
39       CapRound.  Cap styles are typically used in X graphics contexts to  in‐
40       dicate  how  the end-points of lines should be capped.  See the X docu‐
41       mentation for information on what each style implies.
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43       Under normal circumstances the return value is TCL_OK and interp is un‐
44       used.   If string does not contain a valid cap style or an abbreviation
45       of one of these names, then an error message is stored  in  interpreter
46       interp's result, TCL_ERROR is returned, and *capPtr is unmodified.
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48       Tk_NameOfCapStyle  is  the  logical inverse of Tk_GetCapStyle.  Given a
49       cap style such as CapButt it returns a statically-allocated string cor‐
50       responding  to cap.  If cap is not a legal cap style, then “unknown cap
51       style” is returned.
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KEYWORDS

54       butt, cap style, projecting, round
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58Tk                                                           Tk_GetCapStyle(3)
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