Tk_GetCapStyle

Section: Tk Library Procedures (3)
Updated:
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NAME

Tk_GetCapStyle, Tk_NameOfCapStyle - translate between strings and cap styles

SYNOPSIS

#include <tk.h>

int
Tk_GetCapStyle(interp, string, capPtr)

const char *
Tk_NameOfCapStyle(cap)

ARGUMENTS

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

const char *string (in) String containing name of cap style - one of ``butt'', ``projecting'', or ``round'' - or a unique abbreviation of one.

int *capPtr (out) Pointer to location in which to store X cap style corresponding to string.

int cap (in) Cap style: one of CapButt, CapProjecting, or CapRound.

DESCRIPTION

Tk_GetCapStyle places in *capPtr the X cap style corresponding to string. This will be one of the values CapButt, CapProjecting, or CapRound. Cap styles are typically used in X graphics contexts to indicate how the end-points of lines should be capped. 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 cap 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 *capPtr is unmodified.

Tk_NameOfCapStyle is the logical inverse of Tk_GetCapStyle. Given a cap style such as CapButt it returns a statically-allocated string corresponding to cap. If cap is not a legal cap style, then ``unknown cap style'' is returned.

KEYWORDS

butt, cap style, projecting, round