xcb_shm_query_version(3)         XCB Requests         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.

X Version 11                     libxcb 1.17.0        xcb_shm_query_version(3)