xcb_composite_query_version - Negotiate the version of Composite

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

X Version 11                                      libxcb 1.17.0                   xcb_composite_query_version(3)

       This negotiates the version of the Composite extension.  It must be precede all other requests using Com‐
       posite.  Failure to do so will cause a BadRequest error.

       This request does never generate any errors.

       xcb_composite_query_version - Negotiate the version of Composite

response_type
                 The type of this reply, in this case XCB_COMPOSITE_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.

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.

       Returns  an  xcb_composite_query_version_cookie_t. Errors have to be handled when calling the reply func‐
       tion xcb_composite_query_version_reply.

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

xcb-requests(3)

#include<xcb/composite.h>Requestfunction

       xcb_composite_query_version_cookie_t xcb_composite_query_version(xcb_connection_t *conn,
              uint32_t client_major_version, uint32_t client_minor_version);

   Replydatastructure
       typedef struct xcb_composite_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_composite_query_version_reply_t;

   Replyfunction

       xcb_composite_query_version_reply_t *xcb_composite_query_version_reply(xcb_connection_t *conn,
              xcb_composite_query_version_cookie_t cookie, xcb_generic_error_t **e);