176 lines
4.2 KiB
Groff
176 lines
4.2 KiB
Groff
.\" $Xorg: XtOffset.man,v 1.3 2000/08/17 19:42:01 cpqbld Exp $
|
|
.\" $XdotOrg: $
|
|
.\"
|
|
.\" Copyright (c) 1993, 1994 X Consortium
|
|
.\"
|
|
.\" Permission is hereby granted, free of charge, to any person obtaining a
|
|
.\" copy of this software and associated documentation files (the "Software"),
|
|
.\" to deal in the Software without restriction, including without limitation
|
|
.\" the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
.\" and/or sell copies of the Software, and to permit persons to whom the
|
|
.\" Software furnished to do so, subject to the following conditions:
|
|
.\"
|
|
.\" The above copyright notice and this permission notice shall be included in
|
|
.\" all copies or substantial portions of the Software.
|
|
.\"
|
|
.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
.\" IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
.\" FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
.\" THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
|
.\" WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
|
|
.\" OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
.\" SOFTWARE.
|
|
.\"
|
|
.\" Except as contained in this notice, the name of the X Consortium shall not
|
|
.\" be used in advertising or otherwise to promote the sale, use or other
|
|
.\" dealing in this Software without prior written authorization from the
|
|
.\" X Consortium.
|
|
.\"
|
|
.\" $XFree86: xc/doc/man/Xt/XtOffset.man,v 1.2 2001/01/27 18:20:28 dawes Exp $
|
|
.\"
|
|
.ds tk X Toolkit
|
|
.ds xT X Toolkit Intrinsics \- C Language Interface
|
|
.ds xI Intrinsics
|
|
.ds xW X Toolkit Athena Widgets \- C Language Interface
|
|
.ds xL Xlib \- C Language X Interface
|
|
.ds xC Inter-Client Communication Conventions Manual
|
|
.ds Rn 3
|
|
.ds Vn 2.2
|
|
.hw wid-get
|
|
.na
|
|
.de Ds
|
|
.nf
|
|
.\\$1D \\$2 \\$1
|
|
.ft 1
|
|
.ps \\n(PS
|
|
.\".if \\n(VS>=40 .vs \\n(VSu
|
|
.\".if \\n(VS<=39 .vs \\n(VSp
|
|
..
|
|
.de De
|
|
.ce 0
|
|
.if \\n(BD .DF
|
|
.nr BD 0
|
|
.in \\n(OIu
|
|
.if \\n(TM .ls 2
|
|
.sp \\n(DDu
|
|
.fi
|
|
..
|
|
.de FD
|
|
.LP
|
|
.KS
|
|
.TA .5i 3i
|
|
.ta .5i 3i
|
|
.nf
|
|
..
|
|
.de FN
|
|
.fi
|
|
.KE
|
|
.LP
|
|
..
|
|
.de IN \" send an index entry to the stderr
|
|
..
|
|
.de C{
|
|
.KS
|
|
.nf
|
|
.D
|
|
.\"
|
|
.\" choose appropriate monospace font
|
|
.\" the imagen conditional, 480,
|
|
.\" may be changed to L if LB is too
|
|
.\" heavy for your eyes...
|
|
.\"
|
|
.ie "\\*(.T"480" .ft L
|
|
.el .ie "\\*(.T"300" .ft L
|
|
.el .ie "\\*(.T"202" .ft PO
|
|
.el .ie "\\*(.T"aps" .ft CW
|
|
.el .ft R
|
|
.ps \\n(PS
|
|
.ie \\n(VS>40 .vs \\n(VSu
|
|
.el .vs \\n(VSp
|
|
..
|
|
.de C}
|
|
.DE
|
|
.R
|
|
..
|
|
.de Pn
|
|
.ie t \\$1\fB\^\\$2\^\fR\\$3
|
|
.el \\$1\fI\^\\$2\^\fP\\$3
|
|
..
|
|
.de ZN
|
|
.ie t \fB\^\\$1\^\fR\\$2
|
|
.el \fI\^\\$1\^\fP\\$2
|
|
..
|
|
.de NT
|
|
.ne 7
|
|
.ds NO Note
|
|
.if \\n(.$>$1 .if !'\\$2'C' .ds NO \\$2
|
|
.if \\n(.$ .if !'\\$1'C' .ds NO \\$1
|
|
.ie n .sp
|
|
.el .sp 10p
|
|
.TB
|
|
.ce
|
|
\\*(NO
|
|
.ie n .sp
|
|
.el .sp 5p
|
|
.if '\\$1'C' .ce 99
|
|
.if '\\$2'C' .ce 99
|
|
.in +5n
|
|
.ll -5n
|
|
.R
|
|
..
|
|
. \" Note End -- doug kraft 3/85
|
|
.de NE
|
|
.ce 0
|
|
.in -5n
|
|
.ll +5n
|
|
.ie n .sp
|
|
.el .sp 10p
|
|
..
|
|
.ny0
|
|
.TH XtOffset __libmansuffix__ __xorgversion__ "XT FUNCTIONS"
|
|
.SH NAME
|
|
XtOffset, XtOffsetOf, XtNumber \- determine the byte offset or number of array elements
|
|
.SH SYNTAX
|
|
.HP
|
|
Cardinal XtOffset(Type \fIpointer_type\fP, Field \fIfield_name\fP);
|
|
.HP
|
|
Cardinal XtOffsetOf(Type \fIstructure_type\fP, Field \fIfield_name\fP);
|
|
.HP
|
|
Cardinal XtNumber(ArrayVariable \fIarray\fP);
|
|
.SH ARGUMENTS
|
|
.IP \fIarray\fP 1i
|
|
Specifies a fixed-size array.
|
|
.IP \fIfield_name\fP 1i
|
|
Specifies the name of the field for which to calculate the byte offset.
|
|
.IP \fIpointer_type\fP 1i
|
|
Specifies a type that is declared as a pointer to the structure.
|
|
.IP \fIstructure_type\fP 1i
|
|
Specifies a type that is declared as a structure.
|
|
.SH DESCRIPTION
|
|
The
|
|
.ZN XtOffset
|
|
macro is usually used to determine the offset of various resource fields
|
|
from the beginning of a widget and can be used at compile time in static
|
|
initializations.
|
|
.LP
|
|
The
|
|
.ZN XtOffsetOf
|
|
macro expands to a constant expression that gives the offset in bytes
|
|
to the specified structure member from the beginning of the structure.
|
|
It is normally used to statically initialize resource lists and is more
|
|
portable than
|
|
.ZN XtOffset ,
|
|
which serves the same function.
|
|
.LP
|
|
The
|
|
.ZN XtNumber
|
|
macro returns the number of elements in the specified argument lists,
|
|
resources lists, and other counted arrays.
|
|
.SH "SEE ALSO"
|
|
XtGetResourceList(3Xt),
|
|
XtSetArg(3Xt)
|
|
.br
|
|
\fI\*(xT\fP
|
|
.br
|
|
\fI\*(xL\fP
|