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Under GNU General Public License
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xcb_intern_atom(3) XCB Requests xcb_intern_atom(3)
NAME
xcb_intern_atom - Get atom identifier by name
SYNOPSIS
#include <xcb/xproto.h>
Request function
xcb_intern_atom_cookie_t xcb_intern_atom(xcb_connection_t *conn, uint8_t only_if_exists,
uint16_t name_len, const char *name);
Reply datastructure
typedef struct xcb_intern_atom_reply_t {
uint8_t response_type;
uint8_t pad0;
uint16_t sequence;
uint32_t length;
xcb_atom_t atom;
} xcb_intern_atom_reply_t;
Reply function
xcb_intern_atom_reply_t *xcb_intern_atom_reply(xcb_connection_t *conn,
xcb_intern_atom_cookie_t cookie, xcb_generic_error_t **e);
REQUEST ARGUMENTS
conn The XCB connection to X11.
only_if_exists
Return a valid atom id only if the atom already exists.
name_len The length of the following name.
name The name of the atom.
REPLY FIELDS
response_type
The type of this reply, in this case XCB_INTERN_ATOM. This field is also present
in the xcb_generic_reply_t and can be used to tell replies apart from each oth-
er.
sequence The sequence number of the last request processed by the X11 server.
length The length of the reply, in words (a word is 4 bytes).
atom TODO: NOT YET DOCUMENTED.
DESCRIPTION
Retrieves the identifier (xcb_atom_t TODO) for the atom with the specified name. Atoms are
used in protocols like EWMH, for example to store window titles (_NET_WM_NAME atom) as
property of a window.
If only_if_exists is 0, the atom will be created if it does not already exist. If on-
ly_if_exists is 1, XCB_ATOM_NONE will be returned if the atom does not yet exist.
RETURN VALUE
Returns an xcb_intern_atom_cookie_t. Errors have to be handled when calling the reply
function xcb_intern_atom_reply.
If you want to handle errors in the event loop instead, use xcb_intern_atom_unchecked. See
xcb-requests(3) for details.
ERRORS
xcb_alloc_error_t
TODO: reasons?
xcb_value_error_t
A value other than 0 or 1 was specified for only_if_exists.
EXAMPLE
/*
* Resolves the _NET_WM_NAME atom.
*
*/
void my_example(xcb_connection_t *c) {
xcb_intern_atom_cookie_t cookie;
xcb_intern_atom_reply_t *reply;
cookie = xcb_intern_atom(c, 0, strlen("_NET_WM_NAME"), "_NET_WM_NAME");
/* ... do other work here if possible ... */
if ((reply = xcb_intern_atom_reply(c, cookie, NULL))) {
printf("The _NET_WM_NAME atom has ID %u0, reply->atom);
free(reply);
}
}
SEE ALSO
xcb-requests(3), xcb-examples(3), xcb_get_atom_name(3), xlsatoms(1)
AUTHOR
Generated from xproto.xml. Contact xcb AT lists.org for corrections and improve-
ments.
X Version 11 libxcb 1.13 xcb_intern_atom(3)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
2024-04-27 04:01 @18.118.164.151 CrawledBy Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)