267 lines
6.9 KiB
Groff
267 lines
6.9 KiB
Groff
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.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1994, 1996 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 included
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.\" 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, EXPRESS
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.\" 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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.\"
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.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991 by
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.\" Digital Equipment Corporation
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.\"
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.\" Portions Copyright \(co 1990, 1991 by
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.\" Tektronix, Inc.
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.\"
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.\" Permission to use, copy, modify and distribute this documentation for
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.\" any purpose and without fee is hereby granted, provided that the above
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.\" copyright notice appears in all copies and that both that copyright notice
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.\" and this permission notice appear in all copies, and that the names of
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.\" Digital and Tektronix not be used in in advertising or publicity pertaining
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.\" to this documentation without specific, written prior permission.
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.\" Digital and Tektronix makes no representations about the suitability
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.\" of this documentation for any purpose.
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.\" It is provided ``as is'' without express or implied warranty.
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.\"
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.\" $XFree86: xc/doc/man/X11/XACHints.man,v 1.2 2001/01/27 18:19:56 dawes Exp $
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.\"
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.ds xT X Toolkit Intrinsics \- C Language Interface
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.ds xW Athena X Widgets \- C Language X Toolkit 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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.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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.nf
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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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.de C}
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.DE
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.R
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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 hN
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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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.ne 7
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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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.TB
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.ce
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\\*(NO
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.ie n .sp
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.el .sp 5p
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.if '\\$1'C' .ce 99
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.if '\\$2'C' .ce 99
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.in +5n
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.ll -5n
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.R
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..
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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 XAllocClassHint __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS"
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.SH NAME
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XAllocClassHint, XSetClassHint, XGetClassHint, XClassHint \- allocate class hints structure and set or read a window's WM_CLASS property
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.SH SYNTAX
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.HP
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XClassHint *XAllocClassHint\^(void\^);
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.HP
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XSetClassHint\^(\^Display *\fIdisplay\fP, Window \fIw\fP, XClassHint *\fIclass_hints\fP\^);
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.HP
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Status XGetClassHint\^(\^Display *\fIdisplay\fP, Window \fIw\fP, XClassHint *\fIclass_hints_return\fP\^);
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.SH ARGUMENTS
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.IP \fIdisplay\fP 1i
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Specifies the connection to the X server.
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.IP \fIclass_hints\fP 1i
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Specifies the
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.ZN XClassHint
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structure that is to be used.
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.IP \fIclass_hints_return\fP 1i
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Returns the
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.ZN XClassHint
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structure.
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.IP \fIw\fP 1i
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Specifies the window.
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.SH DESCRIPTION
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The
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.ZN XAllocClassHint
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function allocates and returns a pointer to a
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.ZN XClassHint
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structure.
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Note that the pointer fields in the
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.ZN XClassHint
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structure are initially set to NULL.
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If insufficient memory is available,
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.ZN XAllocClassHint
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returns NULL.
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To free the memory allocated to this structure,
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use
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.ZN XFree .
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.LP
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The
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.ZN XSetClassHint
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function sets the class hint for the specified window.
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If the strings are not in the Host Portable Character Encoding,
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the result is implementation-dependent.
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.LP
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.ZN XSetClassHint
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can generate
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.ZN BadAlloc
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and
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.ZN BadWindow
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errors.
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.LP
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The
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.ZN XGetClassHint
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function returns the class hint of the specified window to the members
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of the supplied structure.
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If the data returned by the server is in the Latin Portable Character Encoding,
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then the returned strings are in the Host Portable Character Encoding.
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Otherwise, the result is implementation-dependent.
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It returns a nonzero status on success;
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otherwise, it returns a zero status.
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To free res_name and res_class when finished with the strings,
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use
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.ZN XFree
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on each individually.
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.LP
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.ZN XGetClassHint
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can generate a
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.ZN BadWindow
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error.
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.SH PROPERTIES
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.TP 1i
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\s-1WM_CLASS\s+1
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Set by application programs to allow window and session
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managers to obtain the application's resources from the resource database.
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.SH STRUCTURES
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The
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.ZN XClassHint
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structure contains:
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.LP
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.IN "XClassHint" "" "@DEF@"
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.Ds 0
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.TA .5i
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.ta .5i
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typedef struct {
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char *res_name;
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char *res_class;
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} XClassHint;
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.De
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.LP
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The res_name member contains the application name,
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and the res_class member contains the application class.
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Note that the name set in this property may differ from the name set as WM_NAME.
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That is, WM_NAME specifies what should be displayed in the title bar and,
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therefore, can contain temporal information (for example, the name of
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a file currently in an editor's buffer).
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On the other hand,
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the name specified as part of WM_CLASS is the formal name of the application
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that should be used when retrieving the application's resources from the
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resource database.
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.SH DIAGNOSTICS
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.TP 1i
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.ZN BadAlloc
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The server failed to allocate the requested resource or server memory.
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.TP 1i
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.ZN BadWindow
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A value for a Window argument does not name a defined Window.
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.SH "SEE ALSO"
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XAllocIconSize(3X11),
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XAllocSizeHints(3X11),
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XAllocWMHints(3X11),
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XFree(3X11),
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XSetCommand(3X11),
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XSetTransientForHint(3X11),
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XSetTextProperty(3X11),
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XSetWMClientMachine(3X11),
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XSetWMColormapWindows(3X11),
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XSetWMIconName(3X11),
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XSetWMName(3X11),
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XSetWMProperties(3X11),
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XSetWMProtocols(3X11),
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XStringListToTextProperty(3X11)
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.br
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\fI\*(xL\fP
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