xcb_shm_query_version(3) | XCB Requests | xcb_shm_query_version(3) |
NAME
xcb_shm_query_version - Query the version of the MIT-SHM extension.
SYNOPSIS
#include <xcb/shm.h>
Request function
xcb_shm_query_version_cookie_t xcb_shm_query_version(xcb_connection_t *conn,
Reply datastructure
typedef struct xcb_shm_query_version_reply_t { uint8_t response_type; uint8_t shared_pixmaps; uint16_t sequence; uint32_t length; uint16_t major_version; uint16_t minor_version; uint16_t uid; uint16_t gid; uint8_t pixmap_format; uint8_t pad0[15]; } xcb_shm_query_version_reply_t;
Reply function
xcb_shm_query_version_reply_t
*xcb_shm_query_version_reply(xcb_connection_t *conn,
xcb_shm_query_version_cookie_t cookie,
xcb_generic_error_t **e);
REQUEST ARGUMENTS
- conn
- The XCB connection to X11.
REPLY FIELDS
- response_type
- The type of this reply, in this case XCB_SHM_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).
- True if the server supports shared pixmaps, otherwise false.
- major_version
- The major version of the extension supported.
- minor_version
- The minor version of the extension supported.
- uid
- The UID of the server.
- gid
- The GID of the server.
- pixmap_format
- TODO: NOT YET DOCUMENTED.
DESCRIPTION
This is used to determine the version of the MIT-SHM extension supported by the X server. Clients MUST NOT make other requests in this extension until a reply to this requests indicates the X server supports them.
RETURN VALUE
Returns an xcb_shm_query_version_cookie_t. Errors have to be handled when calling the reply function xcb_shm_query_version_reply.
If you want to handle errors in the event loop instead, use xcb_shm_query_version_unchecked. See xcb-requests(3) for details.
ERRORS
This request does never generate any errors.
SEE ALSO
AUTHOR
Generated from shm.xml. Contact xcb@lists.freedesktop.org for corrections and improvements.
libxcb 1.17.0 | X Version 11 |