Tk_GetJoinStyle, Tk_NameOfJoinStyle - translate between strings and join styles
Tk_GetJoinStyle(interp, string, joinPtr)
Tcl_Interp *interp (in) Interpreter to use for error reporting.
Under normal circumstances the return value is TCL_OK and interp is unused. If string doesn't contain a valid join style or an abbreviation of one of these names, then an error message is stored in interp->result, TCL_ERROR is returned, and *joinPtr is unmodified.
Tk_NameOfJoinStyle is the logical inverse of Tk_GetJoinStyle. Given a join style such as JoinBevel it returns a statically-allocated string corresponding to join.
If join isn't a legal join style, then ``unknown join style'' is returned.
bevel, join style, miter, round
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