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.

AUTHOR

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