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xcb_composite_query_version(3)	 XCB Requests	xcb_composite_query_version(3)

NAME
       xcb_composite_query_version - Negotiate the version of Composite

SYNOPSIS
       #include	<xcb/composite.h>

   Request function

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

   Reply datastructure
       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;

   Reply function

       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);

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_COMPOSITE_QUERY_VER-
		 SION.	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 Composite	extension.  It must be
       precede all other requests using	Composite.   Failure  to  do  so  will
       cause a BadRequest error.

RETURN VALUE
       Returns an xcb_composite_query_version_cookie_t.	Errors have to be han-
       dled when calling the reply function xcb_composite_query_version_reply.

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

X Version 11			 libxcb	1.17.0	xcb_composite_query_version(3)

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