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xcb_query_colors
Section: XCB Requests (3)Updated: libxcb 1.12
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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.