xcb_shm_query_version(3)

NAME
xcb_shm_query_version - Query the version of the MIT-SHM extension.

SYNOPSIS
#include <xcb/shm.h>

  Request function

xcb_shm_query_version_cookie_t xcb_shm_query_version(xcb_connection_t *conn,

  Reply datastructure

typedef struct xcb_shm_query_version_reply_t {
    uint8_t  response_type;
    uint8_t  shared_pixmaps;
    uint16_t sequence;
    uint32_t length;
    uint16_t major_version;
    uint16_t minor_version;
    uint16_t uid;
    uint16_t gid;
    uint8_t  pixmap_format;
    uint8_t  pad0[15];
} xcb_shm_query_version_reply_t;

  Reply function

xcb_shm_query_version_reply_t *xcb_shm_query_version_reply(xcb_connection_t *conn, xcb_shm_query_version_cookie_t cookie, xcb_generic_error_t **e);

REQUEST ARGUMENTS

conn
    The XCB connection to X11.

REPLY FIELDS

response_type
    The type of this reply, in this case XCB_SHM_QUERY_VERSION. 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).

shared_pixmaps
    True if the server supports shared pixmaps, otherwise false.

major_version
    The major version of the extension supported.

minor_version
    The minor version of the extension supported.

uid The UID of the server.

gid The GID of the server.

pixmap_format
    TODO: NOT YET DOCUMENTED.

DESCRIPTION
This is used to determine the version of the MIT-SHM extension supported by the X server. Clients MUST NOT make other requests in this extension until a reply to this requests indicates the X server supports them.

RETURN VALUE
Returns an xcb_shm_query_version_cookie_t. Errors have to be handled when calling the reply function xcb_shm_query_version_reply. If you want to handle errors in the event loop instead, use xcb_shm_query_version_unchecked. See xcb-requests(3) for details.

ERRORS
This request does never generate any errors.

SEE ALSO
xcb-requests(3)

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