Tk\_GetJoinStyle(3) Tk Library Procedures Tk\_GetJoinStyle(3)

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# [NAME](#NAME)

Tk\_GetJoinStyle, Tk\_NameOfJoinStyle - translate between strings and join styles

# [SYNOPSIS](#SYNOPSIS)

```
#include <tk.h>

int
Tk_GetJoinStyle(interp, string, joinPtr)

const char *
Tk_NameOfJoinStyle(join)
```

# [ARGUMENTS](#ARGUMENTS)

Tcl\_Interp *\*interp* (in)

Interpreter to use for error reporting.

const char *\*string* (in)

String containing name of join style - one of “**bevel**”, “**miter**”, or “**round**” - or a unique abbreviation of one.

int *\*joinPtr* (out)

Pointer to location in which to store X join style corresponding to *string*.

int *join* (in)

Join style: one of **JoinBevel**, **JoinMiter**, **JoinRound**.

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# [DESCRIPTION](#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* does not contain a valid join style or an abbreviation of one of these names, then an error message is stored in interpreter *interp*'s 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* is not a legal join style, then “unknown join style” is returned.

# [KEYWORDS](#KEYWORDS)

bevel, join style, miter, round

Tk

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Document: Tk_GetJoinStyle(3) from tk 9.1.0-r0 (Chainguard OS)
Source: https://downloads.sourceforge.net/sourceforge/tcl/tk9.1.0-src.tar.gz