home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
X User Tools
/
X User Tools (O'Reilly and Associates)(1994).ISO
/
sun4c
/
archive
/
tcltk.z
/
tcltk
/
man
/
man3
/
GetOption.3
< prev
next >
Wrap
Text File
|
1994-09-20
|
6KB
|
241 lines
'\"
'\" Copyright (c) 1990 The Regents of the University of California.
'\" All rights reserved.
'\"
'\" Permission is hereby granted, without written agreement and without
'\" license or royalty fees, to use, copy, modify, and distribute this
'\" documentation for any purpose, provided that the above copyright
'\" notice and the following two paragraphs appear in all copies.
'\"
'\" IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
'\" FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
'\" ARISING OUT OF THE USE OF THIS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
'\" CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
'\"
'\" THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
'\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
'\" AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
'\" ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
'\" PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
'\"
'\" $Header: /user6/ouster/wish/man/RCS/GetOption.3,v 1.5 93/04/01 09:41:30 ouster Exp $ SPRITE (Berkeley)
'\"
.\" The definitions below are for supplemental macros used in Tcl/Tk
.\" manual entries.
.\"
.\" .HS name section [date [version]]
.\" Replacement for .TH in other man pages. See below for valid
.\" section names.
.\"
.\" .AP type name in/out [indent]
.\" Start paragraph describing an argument to a library procedure.
.\" type is type of argument (int, etc.), in/out is either "in", "out",
.\" or "in/out" to describe whether procedure reads or modifies arg,
.\" and indent is equivalent to second arg of .IP (shouldn't ever be
.\" needed; use .AS below instead)
.\"
.\" .AS [type [name]]
.\" Give maximum sizes of arguments for setting tab stops. Type and
.\" name are examples of largest possible arguments that will be passed
.\" to .AP later. If args are omitted, default tab stops are used.
.\"
.\" .BS
.\" Start box enclosure. From here until next .BE, everything will be
.\" enclosed in one large box.
.\"
.\" .BE
.\" End of box enclosure.
.\"
.\" .VS
.\" Begin vertical sidebar, for use in marking newly-changed parts
.\" of man pages.
.\"
.\" .VE
.\" End of vertical sidebar.
.\"
.\" .DS
.\" Begin an indented unfilled display.
.\"
.\" .DE
.\" End of indented unfilled display.
.\"
'\" # Heading for Tcl/Tk man pages
.de HS
.ds ^3 \\0
.if !"\\$3"" .ds ^3 \\$3
.if '\\$2'cmds' .TH \\$1 1 \\*(^3 \\$4
.if '\\$2'lib' .TH \\$1 3 \\*(^3 \\$4
.if '\\$2'tcl' .TH \\$1 n \\*(^3 Tcl "Tcl Built-In Commands"
.if '\\$2'tk' .TH \\$1 n \\*(^3 Tk "Tk Commands"
.if '\\$2'tclc' .TH \\$1 3 \\*(^3 Tcl "Tcl Library Procedures"
.if '\\$2'tkc' .TH \\$1 3 \\*(^3 Tk "Tk Library Procedures"
.if '\\$2'tclcmds' .TH \\$1 1 \\*(^3 Tk "Tcl Applications"
.if '\\$2'tkcmds' .TH \\$1 1 \\*(^3 Tk "Tk Applications"
.if t .wh -1.3i ^B
.nr ^l \\n(.l
.ad b
..
'\" # Start an argument description
.de AP
.ie !"\\$4"" .TP \\$4
.el \{\
. ie !"\\$2"" .TP \\n()Cu
. el .TP 15
.\}
.ie !"\\$3"" \{\
.ta \\n()Au \\n()Bu
\&\\$1 \\fI\\$2\\fP (\\$3)
.\".b
.\}
.el \{\
.br
.ie !"\\$2"" \{\
\&\\$1 \\fI\\$2\\fP
.\}
.el \{\
\&\\fI\\$1\\fP
.\}
.\}
..
'\" # define tabbing values for .AP
.de AS
.nr )A 10n
.if !"\\$1"" .nr )A \\w'\\$1'u+3n
.nr )B \\n()Au+15n
.\"
.if !"\\$2"" .nr )B \\w'\\$2'u+\\n()Au+3n
.nr )C \\n()Bu+\\w'(in/out)'u+2n
..
'\" # BS - start boxed text
'\" # ^y = starting y location
'\" # ^b = 1
.de BS
.br
.mk ^y
.nr ^b 1u
.if n .nf
.if n .ti 0
.if n \l'\\n(.lu\(ul'
.if n .fi
..
'\" # BE - end boxed text (draw box now)
.de BE
.nf
.ti 0
.mk ^t
.ie n \l'\\n(^lu\(ul'
.el \{\
.\" Draw four-sided box normally, but don't draw top of
.\" box if the box started on an earlier page.
.ie !\\n(^b-1 \{\
\h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
.\}
.el \}\
\h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
.\}
.\}
.fi
.br
.nr ^b 0
..
'\" # VS - start vertical sidebar
'\" # ^Y = starting y location
'\" # ^v = 1 (for troff; for nroff this doesn't matter)
.de VS
.mk ^Y
.ie n 'mc \s12\(br\s0
.el .nr ^v 1u
..
'\" # VE - end of vertical sidebar
.de VE
.ie n 'mc
.el \{\
.ev 2
.nf
.ti 0
.mk ^t
\h'|\\n(^lu+3n'\L'|\\n(^Yu-1v\(bv'\v'\\n(^tu+1v-\\n(^Yu'\h'-|\\n(^lu+3n'
.sp -1
.fi
.ev
.\}
.nr ^v 0
..
'\" # Special macro to handle page bottom: finish off current
'\" # box/sidebar if in box/sidebar mode, then invoked standard
'\" # page bottom macro.
.de ^B
.ev 2
'ti 0
'nf
.mk ^t
.if \\n(^b \{\
.\" Draw three-sided box if this is the box's first page,
.\" draw two sides but no top otherwise.
.ie !\\n(^b-1 \h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\h'|0u'\c
.el \h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\h'|0u'\c
.\}
.if \\n(^v \{\
.nr ^x \\n(^tu+1v-\\n(^Yu
\kx\h'-\\nxu'\h'|\\n(^lu+3n'\ky\L'-\\n(^xu'\v'\\n(^xu'\h'|0u'\c
.\}
.bp
'fi
.ev
.if \\n(^b \{\
.mk ^y
.nr ^b 2
.\}
.if \\n(^v \{\
.mk ^Y
.\}
..
'\" # DS - begin display
.de DS
.RS
.nf
.sp
..
'\" # DE - end display
.de DE
.fi
.RE
.sp .5
..
.HS Tk_GetOption tkc
.BS
.SH NAME
Tk_GetOption \- retrieve an option from the option database
.SH SYNOPSIS
.nf
\fB#include <tk.h>\fR
.sp
Tk_Uid
\fBTk_GetOption\fR(\fItkwin, name, class\fR)
.SH ARGUMENTS
.AS Tk_Window *class
.AP Tk_Window tkwin in
Token for window.
.AP char *name in
Name of desired option.
.AP char *class in
Class of desired option. Null means there is no class for
this option; do lookup based on name only.
.BE
.SH DESCRIPTION
.PP
This procedure is invoked to retrieve an option from the database
associated with \fItkwin\fR's main window. If there is an option
for \fItkwin\fR that matches the given \fIname\fR or \fIclass\fR,
then it is returned in the form of a Tk_Uid. If multiple options
match \fIname\fR and \fIclass\fR, then the highest-priority one
is returned. If no option matches, then NULL is returned.
.PP
\fBTk_GetOption\fR caches options related to \fItkwin\fR so that
successive calls for the same \fItkwin\fR will execute much more
quickly than successive calls for different windows.
.SH KEYWORDS
class, name, option, retrieve