xcb_query_colors

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

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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.

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Index

NAME

SYNOPSIS

Request function

Reply datastructure

Reply function

Reply accessors

REQUEST ARGUMENTS

REPLY FIELDS

DESCRIPTION

RETURN VALUE

ERRORS

SEE ALSO

AUTHOR