219 lines
4.7 KiB
Groff
219 lines
4.7 KiB
Groff
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.\" Copyright 1993 X Consortium
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.\"
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.\" Permission is hereby granted, free of charge, to any person obtaining
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.\" a copy of this software and associated documentation files (the
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.\" "Software"), to deal in the Software without restriction, including
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.\" without limitation the rights to use, copy, modify, merge, publish,
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.\" distribute, sublicense, and/or sell copies of the Software, and to
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.\" permit persons to whom the Software is furnished to do so, subject to
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.\" the following conditions:
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.\"
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.\" The above copyright notice and this permission notice shall be
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.\" included in all copies or substantial portions of the Software.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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.\" EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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.\" IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
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.\" OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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.\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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.\" OTHER DEALINGS IN THE SOFTWARE.
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.\"
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.\" Except as contained in this notice, the name of the X Consortium shall
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.\" not be used in advertising or otherwise to promote the sale, use or
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.\" other dealings in this Software without prior written authorization
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.\" from the X Consortium.
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.ds tk X Toolkit
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.ds xT X Toolkit Intrinsics \- C Language Interface
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.ds xI Intrinsics
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.ds xW X Toolkit Athena Widgets \- C Language Interface
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.ds xL Xlib \- C Language X Interface
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.ds xC Inter-Client Communication Conventions Manual
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.ds Rn 3
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.ds Vn 2.2
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.hw XtSet-Arg XtMerge-Arg-Lists wid-get
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.na
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.de Ds
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.nf
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.\\$1D \\$2 \\$1
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.ft 1
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.ps \\n(PS
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.\".if \\n(VS>=40 .vs \\n(VSu
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.\".if \\n(VS<=39 .vs \\n(VSp
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..
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.de De
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.ce 0
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.if \\n(BD .DF
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.nr BD 0
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.in \\n(OIu
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.if \\n(TM .ls 2
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.sp \\n(DDu
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.fi
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..
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.de FD
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.LP
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.KS
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.TA .5i 3i
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.ta .5i 3i
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.nf
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..
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.de FN
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.KE
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.LP
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..
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.de IN \" send an index entry to the stderr
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..
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.de C{
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.KS
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.nf
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.D
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.\"
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.\" choose appropriate monospace font
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.\" the imagen conditional, 480,
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.\" may be changed to L if LB is too
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.\" heavy for your eyes...
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.\"
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.ie "\\*(.T"480" .ft L
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.el .ie "\\*(.T"300" .ft L
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.el .ie "\\*(.T"202" .ft PO
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.el .ie "\\*(.T"aps" .ft CW
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.el .ft R
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.el .vs \\n(VSp
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..
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.de C}
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.DE
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.R
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..
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.de Pn
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.ie t \\$1\fB\^\\$2\^\fR\\$3
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.el \\$1\fI\^\\$2\^\fP\\$3
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..
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.de ZN
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.ie t \fB\^\\$1\^\fR\\$2
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.el \fI\^\\$1\^\fP\\$2
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..
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.de NT
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.ds NO Note
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.if \\n(.$>$1 .if !'\\$2'C' .ds NO \\$2
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.if \\n(.$ .if !'\\$1'C' .ds NO \\$1
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.ie n .sp
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.el .sp 10p
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.ll -5n
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.R
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. \" Note End -- doug kraft 3/85
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.de NE
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.ce 0
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.in -5n
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.el .sp 10p
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..
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.ny0
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.TH XtSetArg 3Xt "Release 6" "X Version 11" "XT FUNCTIONS"
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.SH NAME
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XtSetArg, XtMergeArgLists \- set and merge ArgLists
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.SH SYNTAX
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XtSetArg(\fIarg\fP, \fIname\fP, \fIvalue\fP)
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.br
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Arg \fIarg\fP;
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.br
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String \fIname\fP;
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.br
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XtArgVal \fIvalue\fP;
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.LP
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ArgList XtMergeArgLists(\fIargs1\fP, \fInum_args1\fP, \fIargs2\fP, \
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\fInum_args2\fP)
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.br
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ArgList \fIargs1\fP;
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.br
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Cardinal \fInum_args1\fP;
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.br
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ArgList \fIargs2\fP;
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.br
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Cardinal \fInum_args2\fP;
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.SH ARGUMENTS
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.IP \fIarg\fP 1i
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Specifies the name-value pair to set.
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.IP \fIargs1\fP 1i
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Specifies the first
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.ZN ArgList .
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.IP \fIargs2\fP 1i
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Specifies the second
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.ZN ArgList .
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.IP \fInum_args1\fP 1i
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Specifies the number of arguments in the first argument list.
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.IP \fInum_args2\fP 1i
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Specifies the number of arguments in the second argument list.
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.IP \fIname\fP 1i
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Specifies the name of the resource.
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.IP \fIvalue\fP 1i
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Specifies the value of the resource if it will fit in an
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.ZN XtArgVal
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or the address.
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.SH DESCRIPTION
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The
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.ZN XtSetArg
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function is usually used in a highly stylized manner to
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minimize the probability of making a mistake; for example:
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.LP
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.Ds
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.TA .5i 3i
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.ta .5i 3i
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Arg args[20];
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int n;
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n = 0;
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XtSetArg(args[n], XtNheight, 100); n++;
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XtSetArg(args[n], XtNwidth, 200); n++;
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XtSetValues(widget, args, n);
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.De
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.LP
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Alternatively, an application can statically declare the argument list
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and use
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.ZN XtNumber :
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.LP
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.Ds
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.TA .5i 3i
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.ta .5i 3i
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static Args args[] = {
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{XtNheight, (XtArgVal) 100},
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{XtNwidth, (XtArgVal) 200},
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};
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XtSetValues(Widget, args, XtNumber(args));
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.De
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.LP
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Note that you should not use auto-increment or auto-decrement
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within the first argument to
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.ZN XtSetArg .
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.ZN XtSetArg
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can be implemented as a macro that dereferences the first argument twice.
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.LP
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The
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.ZN XtMergeArgLists
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function allocates enough storage to hold the combined
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.ZN ArgList
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structures and copies them into it.
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Note that it does not check for duplicate entries.
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When it is no longer needed,
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free the returned storage by using
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.ZN XtFree .
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.SH "SEE ALSO"
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XtOffset(3Xt)
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.br
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\fI\*(xT\fP
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.br
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\fI\*(xL\fP
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