www.LinuxHowtos.org

xcb_xv_query_image_attributes

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

NAME

xcb_xv_query_image_attributes -

SYNOPSIS

#include <xcb/xv.h>

Request function

: xcb_xv_query_image_attributes_cookie_t xcb_xv_query_image_attributes(xcb_connection_t *conn, xcb_xv_port_t port, uint32_t id, uint16_t width, uint16_t height);

Reply datastructure


typedef struct xcb_xv_query_image_attributes_reply_t {
    uint8_t  response_type;
    uint8_t  pad0;
    uint16_t sequence;
    uint32_t length;
    uint32_t num_planes;
    uint32_t data_size;
    uint16_t width;
    uint16_t height;
    uint8_t  pad1[12];
} xcb_xv_query_image_attributes_reply_t;

Reply function

: xcb_xv_query_image_attributes_reply_t *xcb_xv_query_image_attributes_reply(xcb_connection_t *conn, xcb_xv_query_image_attributes_cookie_t cookie, xcb_generic_error_t **e);

Reply accessors

: uint32_t *xcb_xv_query_image_attributes_pitches(const xcb_xv_query_image_attributes_request_t *reply);
: int xcb_xv_query_image_attributes_pitches_length(const xcb_xv_query_image_attributes_reply_t *reply);
: xcb_generic_iterator_t xcb_xv_query_image_attributes_pitches_end(const xcb_xv_query_image_attributes_reply_t *reply);
: uint32_t *xcb_xv_query_image_attributes_offsets(const xcb_xv_query_image_attributes_request_t *reply);
: int xcb_xv_query_image_attributes_offsets_length(const xcb_xv_query_image_attributes_reply_t *reply);
: xcb_generic_iterator_t xcb_xv_query_image_attributes_offsets_end(const xcb_xv_query_image_attributes_reply_t *reply);

REQUEST ARGUMENTS

conn: The XCB connection to X11.
port: TODO: NOT YET DOCUMENTED.
id: TODO: NOT YET DOCUMENTED.
width: TODO: NOT YET DOCUMENTED.
height: TODO: NOT YET DOCUMENTED.

REPLY FIELDS

response_type: The type of this reply, in this case XCB_XV_QUERY_IMAGE_ATTRIBUTES. 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).
num_planes: TODO: NOT YET DOCUMENTED.
data_size: TODO: NOT YET DOCUMENTED.
width: TODO: NOT YET DOCUMENTED.
height: TODO: NOT YET DOCUMENTED.

DESCRIPTION

RETURN VALUE

Returns an xcb_xv_query_image_attributes_cookie_t. Errors have to be handled when calling the reply function xcb_xv_query_image_attributes_reply.

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

ERRORS

This request does never generate any errors.

AUTHOR

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

Index

NAME

SYNOPSIS

Request function
Reply datastructure
Reply function
Reply accessors

REQUEST ARGUMENTS