281 lines
7.6 KiB
Groff
281 lines
7.6 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/XInternA.man,v 1.2 2001/01/27 18:20:01 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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.de De
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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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..
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.ny0
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.TH XInternAtom __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS"
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.SH NAME
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XInternAtom, XInternAtoms, XGetAtomName, XGetAtomNames \- create or return atom names
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.SH SYNTAX
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.HP
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Atom XInternAtom\^(\^Display *\fIdisplay\fP\^, char *\fIatom_name\fP\^, Bool
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\fIonly_if_exists\fP\^);
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.HP
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Status XInternAtoms\^(\^Display *\fIdisplay\fP\^, char **\fInames\fP\^, int
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\fIcount\fP\^, Bool \fIonly_if_exists\fP\^, Atom *\fIatoms_return\fP\^);
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.HP
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char *XGetAtomName\^(\^Display *\fIdisplay\fP\^, Atom \fIatom\fP\^);
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.HP
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Status XGetAtomNames\^(\^Display *\fIdisplay\fP\^, Atom *\fIatoms\fP\^, int
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\fIcount\fP\^, char **\fInames_return\fP\^);
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.SH ARGUMENTS
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.IP \fIatom\fP 1i
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Specifies the atom for the property name you want returned.
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.IP \fIatoms\fP 1i
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Specifies the array of atoms.
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.IP \fIatom_name\fP 1i
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Specifies the name associated with the atom you want returned.
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.IP \fIatoms_return\fP 1i
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Returns the atoms.
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.ds Cn atom names in the array
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.IP \fIcount\fP 1i
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Specifies the number of \*(Cn.
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.ds Cn atoms in the array
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.IP \fIcount\fP 1i
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Specifies the number of \*(Cn.
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.IP \fIdisplay\fP 1i
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Specifies the connection to the X server.
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.IP \fInames\fP 1i
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Specifies the array of atom names.
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.IP \fInames_return\fP 1i
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Returns the atom names.
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.IP \fIonly_if_exists\fP 1i
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Specifies a Boolean value that indicates whether the atom must be created.
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.SH DESCRIPTION
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The
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.ZN XInternAtom
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function returns the atom identifier associated with the specified atom_name
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string.
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If only_if_exists is
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.ZN False ,
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the atom is created if it does not exist.
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Therefore,
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.ZN XInternAtom
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can return
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.ZN None .
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If the atom name is not in the Host Portable Character Encoding,
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the result is implementation-dependent.
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Uppercase and lowercase matter;
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the strings ``thing'', ``Thing'', and ``thinG''
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all designate different atoms.
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The atom will remain defined even after the client's connection closes.
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It will become undefined only when the last connection to
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the X server closes.
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.LP
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.ZN XInternAtom
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can generate
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.ZN BadAlloc
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and
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.ZN BadValue
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errors.
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.LP
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The
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.ZN XInternAtoms
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function returns the atom identifiers associated with the specified names.
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The atoms are stored in the atoms_return array supplied by the caller.
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Calling this function is equivalent to calling
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.ZN XInternAtom
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for each of the names in turn with the specified value of only_if_exists,
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but this function minimizes the number of round-trip protocol exchanges
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between the client and the X server.
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.LP
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This function returns a nonzero status if atoms are returned for
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all of the names;
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otherwise, it returns zero.
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.LP
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.ZN XInternAtoms
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can generate
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.ZN BadAlloc
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and
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.ZN BadValue
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errors.
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.LP
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The
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.ZN XGetAtomName
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function returns the name associated with the specified atom.
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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 string is in the Host Portable Character Encoding.
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Otherwise, the result is implementation-dependent.
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To free the resulting string,
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call
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.ZN XFree .
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.LP
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.ZN XGetAtomName
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can generate a
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.ZN BadAtom
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error.
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.LP
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The
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.ZN XGetAtomNames
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function returns the names associated with the specified atoms.
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The names are stored in the names_return array supplied by the caller.
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Calling this function is equivalent to calling
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.ZN XGetAtomName
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for each of the atoms in turn,
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but this function minimizes the number of round-trip protocol exchanges
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between the client and the X server.
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.LP
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This function returns a nonzero status if names are returned for
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all of the atoms;
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otherwise, it returns zero.
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.LP
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.ZN XGetAtomNames
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can generate a
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.ZN BadAtom
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error.
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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 BadAtom
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A value for an Atom argument does not name a defined Atom.
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.TP 1i
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.ZN BadValue
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Some numeric value falls outside the range of values accepted by the request.
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Unless a specific range is specified for an argument, the full range defined
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by the argument's type is accepted. Any argument defined as a set of
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alternatives can generate this error.
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.SH "SEE ALSO"
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XFree(3X11),
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XGetWindowProperty(3X11)
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.br
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\fI\*(xL\fP
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