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xcb_query_colors

Section: XCB Requests (3)
Updated: libxcb 1.12
Index Return to Main Contents
 

NAME

xcb_query_colors -  

SYNOPSIS

#include <xcb/xproto.h>  

Request function

xcb_query_colors_cookie_t xcb_query_colors(xcb_connection_t *conn, xcb_colormap_t cmap, uint32_t pixels_len, const uint32_t *pixels);

 

Reply datastructure


typedef struct xcb_query_colors_reply_t {
    uint8_t  response_type;
    uint8_t  pad0;
    uint16_t sequence;
    uint32_t length;
    uint16_t colors_len;
    uint8_t  pad1[22];
} xcb_query_colors_reply_t;
 

Reply function

xcb_query_colors_reply_t *xcb_query_colors_reply(xcb_connection_t *conn, xcb_query_colors_cookie_t cookie, xcb_generic_error_t **e);
 

Reply accessors

xcb_rgb_t *xcb_query_colors_colors(const xcb_query_colors_request_t *reply);
int xcb_query_colors_colors_length(const xcb_query_colors_reply_t *reply);
xcb_rgb_iterator_t xcb_query_colors_colors_iterator(const xcb_query_colors_reply_t *reply);
 

REQUEST ARGUMENTS

conn
The XCB connection to X11.
cmap
TODO: NOT YET DOCUMENTED.
pixels_len
TODO: NOT YET DOCUMENTED.
pixels
TODO: NOT YET DOCUMENTED.
 

REPLY FIELDS

response_type
The type of this reply, in this case XCB_QUERY_COLORS. 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).
colors_len
TODO: NOT YET DOCUMENTED.
 

DESCRIPTION

 

RETURN VALUE

Returns an xcb_query_colors_cookie_t. Errors have to be handled when calling the reply function xcb_query_colors_reply.

If you want to handle errors in the event loop instead, use xcb_query_colors_unchecked. See xcb-requests(3) for details.  

ERRORS

This request does never generate any errors.  

SEE ALSO

 

AUTHOR

Generated from xproto.xml. Contact xcb@lists.freedesktop.org for corrections and improvements.
 

Index

NAME
SYNOPSIS
Request function
Reply datastructure
Reply function
Reply accessors
REQUEST ARGUMENTS
REPLY FIELDS
DESCRIPTION
RETURN VALUE
ERRORS
SEE ALSO
AUTHOR





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