xcb_query_font - Online Linux Manual PageSection : 3
Updated : libxcb 1.13.1
Source : X Version 11
Note : XCB Requests
NAMExcb_query_font − query font metrics
SYNOPSIS#include <xcb/xproto.h>
Request functionxcb_query_font_cookie_t xcb_query_font(xcb_connection_t *conn, xcb_fontable_t font);
Reply datastructuretypedef 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 functionxcb_query_font_reply_t *xcb_query_font_reply(xcb_connection_t *conn, xcb_query_font_cookie_t cookie, xcb_generic_error_t **e);
Reply accessorsxcb_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 ARGUMENTSconn The XCB connection to X11. font The fontable (Font or Graphics Context) to query.
REPLY FIELDSresponse_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.
DESCRIPTIONQueries information associated with the font.
RETURN VALUEReturns 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.
ERRORSThis request does never generate any errors.
SEE ALSOxcb-requests(3)
AUTHORGenerated from xproto.xml. Contact xcb@lists.freedesktop.org for corrections and improvements. 0
Johanes Gumabo
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