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Under GNU General Public License
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xcb_query_font(3) XCB Requests xcb_query_font(3)
NAME
xcb_query_font - query font metrics
SYNOPSIS
#include <xcb/xproto.h>
Request function
xcb_query_font_cookie_t xcb_query_font(xcb_connection_t *conn, xcb_fontable_t font);
Reply datastructure
typedef struct xcb_query_font_reply_t {
uint8_t response_type;
uint8_t pad0;
uint16_t sequence;
uint32_t length;
xcb_charinfo_t min_bounds;
uint8_t pad1[4];
xcb_charinfo_t max_bounds;
uint8_t pad2[4];
uint16_t min_char_or_byte2;
uint16_t max_char_or_byte2;
uint16_t default_char;
uint16_t properties_len;
uint8_t draw_direction;
uint8_t min_byte1;
uint8_t max_byte1;
uint8_t all_chars_exist;
int16_t font_ascent;
int16_t font_descent;
uint32_t char_infos_len;
} xcb_query_font_reply_t;
Reply function
xcb_query_font_reply_t *xcb_query_font_reply(xcb_connection_t *conn,
xcb_query_font_cookie_t cookie, xcb_generic_error_t **e);
Reply accessors
xcb_fontprop_t *xcb_query_font_properties(const xcb_query_font_request_t *reply);
int xcb_query_font_properties_length(const xcb_query_font_reply_t *reply);
xcb_fontprop_iterator_t xcb_query_font_properties_iterator(const xcb_query_font_reply_t
*reply);
xcb_charinfo_t *xcb_query_font_char_infos(const xcb_query_font_request_t *reply);
int xcb_query_font_char_infos_length(const xcb_query_font_reply_t *reply);
xcb_charinfo_iterator_t xcb_query_font_char_infos_iterator(const xcb_query_font_reply_t
*reply);
REQUEST ARGUMENTS
conn The XCB connection to X11.
font The fontable (Font or Graphics Context) to query.
REPLY FIELDS
response_type
The type of this reply, in this case XCB_QUERY_FONT. 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).
min_bounds
minimum bounds over all existing char
max_bounds
maximum bounds over all existing char
min_char_or_byte2
first character
max_char_or_byte2
last character
default_char
char to print for undefined character
properties_len
how many properties there are
draw_direction
One of the following values:
XCB_FONT_DRAW_LEFT_TO_RIGHT
TODO: NOT YET DOCUMENTED.
XCB_FONT_DRAW_RIGHT_TO_LEFT
TODO: NOT YET DOCUMENTED.
min_byte1 TODO: NOT YET DOCUMENTED.
max_byte1 TODO: NOT YET DOCUMENTED.
all_chars_exist
flag if all characters have nonzero size
font_ascent
baseline to top edge of raster
font_descent
baseline to bottom edge of raster
char_infos_len
TODO: NOT YET DOCUMENTED.
DESCRIPTION
Queries information associated with the font.
RETURN VALUE
Returns an xcb_query_font_cookie_t. Errors have to be handled when calling the reply func-
tion xcb_query_font_reply.
If you want to handle errors in the event loop instead, use xcb_query_font_unchecked. See
xcb-requests(3) for details.
ERRORS
This request does never generate any errors.
SEE ALSO
xcb-requests(3)
AUTHOR
Generated from xproto.xml. Contact xcb AT lists.org for corrections and improve-
ments.
X Version 11 libxcb 1.13 xcb_query_font(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 06:46 @3.145.206.169 CrawledBy Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)