xcb_dbe_query_version_reply3
Queries the version of this extension
Part of xcb_dbe_query_version(3).
Usage
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
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]
;
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.
Overview
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.