Tk_GetJoinStyle — C Library Procedures

NAME

Tk_GetJoinStyle, Tk_NameOfJoinStyle − translate between strings and join styles

SYNOPSIS

#include <tk.h>
int
Tk_GetJoinStyle(interp, string, joinPtr)
char ∗
Tk_NameOfJoinStyle(join)

ARGUMENTS

Tcl_Interp∗interp(in) Interpreter to use for error reporting.

char∗string(in) String containing name of join style: one of “bevel”, “miter”, or “round”.

int∗joinPtr(out) Pointer to location in which to store X join style corresponding to string.

intjoin(in) Join style: one of JoinBevel, JoinMiter, JoinRound.

DESCRIPTION

Tk_GetJoinStyle places in ∗joinPtr the X join style corresponding to string, which will be one of JoinBevel, JoinMiter, or JoinRound. Join styles are typically used in X graphics contexts to indicate how adjacent line segments should be joined together. See the X documentation for information on what each style implies.

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.

KEYWORDS

bevel, join style, miter, round