xcb_dbe_query_version - Man Page
Queries the version of this extension
Synopsis
#include <xcb/dbe.h>
Request function
xcb_dbe_query_version_cookie_t xcb_dbe_query_version(xcb_connection_t *conn, uint8_t major_version, uint8_t minor_version);
Reply datastructure
typedef struct xcb_dbe_query_version_reply_t { uint8_t response_type; uint8_t pad0; uint16_t sequence; uint32_t length; uint8_t major_version; uint8_t minor_version; uint8_t pad1[22]; } xcb_dbe_query_version_reply_t;
Reply function
xcb_dbe_query_version_reply_t *xcb_dbe_query_version_reply(xcb_connection_t *conn, xcb_dbe_query_version_cookie_t cookie, xcb_generic_error_t **e);
Request Arguments
- conn
The XCB connection to X11.
- major_version
The major version of the extension. Check that it is compatible with the XCB_DBE_MAJOR_VERSION that your code is compiled with.
- minor_version
The minor version of the extension. Check that it is compatible with the XCB_DBE_MINOR_VERSION that your code is compiled with.
Reply Fields
- response_type
The type of this reply, in this case XCB_DBE_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
TODO: NOT YET DOCUMENTED.
- minor_version
TODO: NOT YET DOCUMENTED.
Description
Queries the version of this extension. You must do this before using any functionality it provides.
Return Value
Returns an xcb_dbe_query_version_cookie_t. Errors have to be handled when calling the reply function xcb_dbe_query_version_reply.
If you want to handle errors in the event loop instead, use xcb_dbe_query_version_unchecked. See xcb-requests(3) for details.
Errors
This request does never generate any errors.
See Also
Author
Generated from dbe.xml. Contact xcb@lists.freedesktop.org for corrections and improvements.
Referenced By
The man pages xcb_dbe_query_version_reply(3) and xcb_dbe_query_version_unchecked(3) are aliases of xcb_dbe_query_version(3).