xcb_damage_query_version(3)      XCB Requests      xcb_damage_query_version(3)

NAME
       xcb_damage_query_version - Negotiate the version of the DAMAGE
       extension

SYNOPSIS
       #include <xcb/damage.h>

   Request function
       xcb_damage_query_version_cookie_t
              xcb_damage_query_version(xcb_connection_t *conn,
              uint32_t client_major_version, uint32_t client_minor_version);

   Reply datastructure

       typedef struct xcb_damage_query_version_reply_t {
           uint8_t  response_type;
           uint8_t  pad0;
           uint16_t sequence;
           uint32_t length;
           uint32_t major_version;
           uint32_t minor_version;
           uint8_t  pad1[16];
       } xcb_damage_query_version_reply_t;

   Reply function
       xcb_damage_query_version_reply_t
              *xcb_damage_query_version_reply(xcb_connection_t *conn,
              xcb_damage_query_version_cookie_t cookie,
              xcb_generic_error_t **e);

REQUEST ARGUMENTS
       conn      The XCB connection to X11.

       client_major_version
                 The major version supported by the client.

       client_minor_version
                 The minor version supported by the client.

REPLY FIELDS
       response_type
                 The type of this reply, in this case
                 XCB_DAMAGE_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).

       major_version
                 The major version chosen by the server.

       minor_version
                 The minor version chosen by the server.

DESCRIPTION
       This negotiates the version of the DAMAGE extension.  It must precede
       any other request using the DAMAGE extension.  Failure to do so will
       cause a BadRequest error for those requests.

RETURN VALUE
       Returns an xcb_damage_query_version_cookie_t. Errors have to be handled
       when calling the reply function xcb_damage_query_version_reply.

       If you want to handle errors in the event loop instead, use
       xcb_damage_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 damage.xml. Contact xcb@lists.freedesktop.org for
       corrections and improvements.

X Version 11                     libxcb 1.17.0     xcb_damage_query_version(3)