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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

The XCB connection to X11.
The fontable (Font or Graphics Context) to query.

REPLY FIELDS

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.
The sequence number of the last request processed by the X11 server.
The length of the reply, in words (a word is 4 bytes).
minimum bounds over all existing char
maximum bounds over all existing char
first character
last character
char to print for undefined character
how many properties there are
One of the following values:
TODO: NOT YET DOCUMENTED.
TODO: NOT YET DOCUMENTED.

TODO: NOT YET DOCUMENTED.
TODO: NOT YET DOCUMENTED.
flag if all characters have nonzero size
baseline to top edge of raster
baseline to bottom edge of raster
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.

libxcb 1.16.1 X Version 11