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markom |
'\"
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'\" Copyright (c) 1990 The Regents of the University of California.
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'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
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'\"
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'\" See the file "license.terms" for information on usage and redistribution
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'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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'\"
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'\" RCS: @(#) $Id: GetCapStyl.3,v 1.1.1.1 2002-01-16 10:25:48 markom Exp $
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'\"
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.so man.macros
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.TH Tk_GetCapStyle 3 "" Tk "Tk Library Procedures"
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.BS
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.SH NAME
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Tk_GetCapStyle, Tk_NameOfCapStyle \- translate between strings and cap styles
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.SH SYNOPSIS
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.nf
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\fB#include \fR
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.sp
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int
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\fBTk_GetCapStyle(\fIinterp, string, capPtr\fB)\fR
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.sp
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char *
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\fBTk_NameOfCapStyle(\fIcap\fB)\fR
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.SH ARGUMENTS
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.AS "Tcl_Interp" *capPtr
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.AP Tcl_Interp *interp in
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Interpreter to use for error reporting.
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.AP char *string in
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String containing name of cap style: one of ```butt'', ``projecting'',
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or ``round''.
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.AP int *capPtr out
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Pointer to location in which to store X cap style corresponding to
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\fIstring\fR.
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.AP int cap in
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Cap style: one of \fBCapButt\fR, \fBCapProjecting\fR, or \fBCapRound\fR.
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.BE
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.SH DESCRIPTION
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.PP
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\fBTk_GetCapStyle\fR places in \fI*capPtr\fR the X cap style
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corresponding to \fIstring\fR.
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This will be one of the values
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\fBCapButt\fR, \fBCapProjecting\fR, or \fBCapRound\fR.
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Cap styles are typically used in X graphics contexts to indicate
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how the end-points of lines should be capped.
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See the X documentation for information on what each style
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implies.
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.PP
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Under normal circumstances the return value is \fBTCL_OK\fR and
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\fIinterp\fR is unused.
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If \fIstring\fR doesn't contain a valid cap style
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or an abbreviation of one of these names, then an error message is
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stored in \fIinterp->result\fR, \fBTCL_ERROR\fR is returned, and
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\fI*capPtr\fR is unmodified.
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.PP
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\fBTk_NameOfCapStyle\fR is the logical inverse of \fBTk_GetCapStyle\fR.
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Given a cap style such as \fBCapButt\fR it returns a
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statically-allocated string corresponding to \fIcap\fR.
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If \fIcap\fR isn't a legal cap style, then
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``unknown cap style'' is returned.
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.SH KEYWORDS
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butt, cap style, projecting, round
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