Manpages - xcb_query_font.3
Table of Contents
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 other.
- 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 function 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@lists.freedesktop.org for corrections and improvements.