xcb_glx_get_histogram man page

xcb_glx_get_histogram —

Synopsis

#include <xcb/glx.h>

Request function

xcb_glx_get_histogram_cookie_t xcb_glx_get_histogram(xcb_connection_t *conn, xcb_glx_context_tag_t context_tag, uint32_t target, uint32_t format, uint32_t type, uint8_t swap_bytes, uint8_t reset);

Reply datastructure

typedef struct xcb_glx_get_histogram_reply_t {
    uint8_t  response_type;
    uint8_t  pad0;
    uint16_t sequence;
    uint32_t length;
    uint8_t  pad1[8];
    int32_t  width;
    uint8_t  pad2[12];
} xcb_glx_get_histogram_reply_t;

Reply function

xcb_glx_get_histogram_reply_t *xcb_glx_get_histogram_reply(xcb_connection_t *conn, xcb_glx_get_histogram_cookie_t cookie, xcb_generic_error_t **e);

Reply accessors

uint8_t *xcb_glx_get_histogram_data(const xcb_glx_get_histogram_request_t *reply);

int xcb_glx_get_histogram_data_length(const xcb_glx_get_histogram_reply_t *reply);

xcb_generic_iterator_t xcb_glx_get_histogram_data_end(const xcb_glx_get_histogram_reply_t *reply);

Request Arguments

conn

The XCB connection to X11.

context_tag

TODO: NOT YET DOCUMENTED.

target

TODO: NOT YET DOCUMENTED.

format

TODO: NOT YET DOCUMENTED.

type

TODO: NOT YET DOCUMENTED.

swap_bytes

TODO: NOT YET DOCUMENTED.

reset

TODO: NOT YET DOCUMENTED.

Reply Fields

response_type

The type of this reply, in this case XCB_GLX_GET_HISTOGRAM. 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).

width

TODO: NOT YET DOCUMENTED.

Description

Return Value

Returns an xcb_glx_get_histogram_cookie_t. Errors have to be handled when calling the reply function xcb_glx_get_histogram_reply.

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

Errors

This request does never generate any errors.

See Also

Author

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

Referenced By

xcb_glx_get_histogram_data(3), xcb_glx_get_histogram_data_end(3), xcb_glx_get_histogram_data_length(3), xcb_glx_get_histogram_reply(3) and xcb_glx_get_histogram_unchecked(3) are aliases of xcb_glx_get_histogram(3).

libxcb 1.12 X Version 11 XCB Requests