Data Structures | |
struct | xcb_generic_iterator_t |
Generic iterator. More... | |
struct | xcb_generic_reply_t |
Generic reply. More... | |
struct | xcb_generic_event_t |
Generic event. More... | |
struct | xcb_generic_error_t |
Generic error. More... | |
struct | xcb_void_cookie_t |
Generic cookie. More... | |
struct | xcb_auth_info_t |
Container for authorization information. More... | |
Defines | |
#define | X_PROTOCOL 11 |
#define | X_PROTOCOL_REVISION 0 |
#define | X_TCP_PORT 6000 |
#define | XCB_TYPE_PAD(T, I) (-(I) & (sizeof(T) > 4 ? 3 : sizeof(T) - 1)) |
#define | XCB_NONE 0L |
#define | XCB_COPY_FROM_PARENT 0L |
#define | XCB_CURRENT_TIME 0L |
#define | XCB_NO_SYMBOL 0L |
Typedefs | |
typedef xcb_connection_t | xcb_connection_t |
XCB Connection structure. | |
typedef xcb_auth_info_t | xcb_auth_info_t |
Container for authorization information. | |
typedef xcb_extension_t | xcb_extension_t |
Functions | |
int | xcb_flush (xcb_connection_t *c) |
Forces any buffered output to be written to the server. | |
uint32_t | xcb_get_maximum_request_length (xcb_connection_t *c) |
Returns the maximum request length that this server accepts. | |
void | xcb_prefetch_maximum_request_length (xcb_connection_t *c) |
Prefetch the maximum request length without blocking. | |
xcb_generic_event_t * | xcb_wait_for_event (xcb_connection_t *c) |
Returns the next event or error from the server. | |
xcb_generic_event_t * | xcb_poll_for_event (xcb_connection_t *c) |
Returns the next event or error from the server. | |
xcb_generic_error_t * | xcb_request_check (xcb_connection_t *c, xcb_void_cookie_t cookie) |
Return the error for a request, or NULL if none can ever arrive. | |
const xcb_query_extension_reply_t * | xcb_get_extension_data (xcb_connection_t *c, xcb_extension_t *ext) |
Caches reply information from QueryExtension requests. | |
void | xcb_prefetch_extension_data (xcb_connection_t *c, xcb_extension_t *ext) |
Prefetch of extension data into the extension cache. | |
const xcb_setup_t * | xcb_get_setup (xcb_connection_t *c) |
Access the data returned by the server. | |
int | xcb_get_file_descriptor (xcb_connection_t *c) |
Access the file descriptor of the connection. | |
int | xcb_connection_has_error (xcb_connection_t *c) |
Test whether the connection has shut down due to a fatal error. | |
xcb_connection_t * | xcb_connect_to_fd (int fd, xcb_auth_info_t *auth_info) |
Connects to the X server. | |
void | xcb_disconnect (xcb_connection_t *c) |
Closes the connection. | |
int | xcb_parse_display (const char *name, char **host, int *display, int *screen) |
Parses a display string name in the form documented by X(7x). | |
xcb_connection_t * | xcb_connect (const char *displayname, int *screenp) |
Connects to the X server. | |
xcb_connection_t * | xcb_connect_to_display_with_auth_info (const char *display, xcb_auth_info_t *auth, int *screen) |
Connects to the X server, using an authorization information. | |
uint32_t | xcb_generate_id (xcb_connection_t *c) |
Allocates an XID for a new object. |
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Current protocol version |
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Current minor version |
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X_TCP_PORT + display number = server port for TCP transport |
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XCB_COPY_FROM_PARENT can be used for many xcb_create_window parameters |
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XCB_CURRENT_TIME can be used in most requests that take an xcb_timestamp_t |
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XCB_NO_SYMBOL fills in unused entries in xcb_keysym_t tables |
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XCB_NONE is the universal null resource or null atom parameter value for many core X requests |
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Container for authorization information. A container for authorization information to be sent to the X server. |
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XCB Connection structure. A structure that contain all data that XCB needs to communicate with an X server. Opaque structure containing all data that XCB needs to communicate with an X server. |
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Opaque structure used as key for xcb_get_extension_data_t. |
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Connects to the X server.
displayname . If displayname is NULL , uses the value of the DISPLAY environment variable. If a particular screen on that server is preferred, the int pointed to by screenp (if not NULL ) will be set to that screen; otherwise the screen will be set to 0. |
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Connects to the X server, using an authorization information.
displayname , using the authorization auth . If a particular screen on that server is preferred, the int pointed to by screenp (if not NULL ) will be set to that screen; otherwise screenp will be set to 0. |
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Connects to the X server.
fd and the xcb_auth_info_t auth_info . The file descriptor fd is bidirectionally connected to an X server. If the connection should be unauthenticated, auth_info must be NULL . |
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Test whether the connection has shut down due to a fatal error.
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Closes the connection.
c . |
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Forces any buffered output to be written to the server.
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Allocates an XID for a new object.
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Caches reply information from QueryExtension requests.
The result must not be freed. This storage is managed by the cache itself. |
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Access the file descriptor of the connection.
c . |
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Returns the maximum request length that this server accepts.
Note that this length is measured in four-byte units, making the theoretical maximum lengths roughly 256kB without BIG-REQUESTS and 16GB with. |
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Access the data returned by the server.
See the X protocol specification for more details. The result must not be freed. |
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Parses a display string name in the form documented by X(7x).
display_name in the form documented by X(7x). Has no side effects on failure. If displayname is NULL or empty, it uses the environment variable DISPLAY. hostp is a pointer to a newly allocated string that contain the host name. displayp is set to the display number and screenp to the preferred screen number. screenp can be NULL . If displayname does not contain a screen number, it is set to 0 . |
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Returns the next event or error from the server.
NULL otherwise. If no event is available, that might be because an I/O error like connection close occurred while attempting to read the next event, in which case the connection is shut down when this function returns. |
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Prefetch of extension data into the extension cache.
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Prefetch the maximum request length without blocking.
Invoking this function may cause a call to xcb_big_requests_enable, but will not block waiting for the reply. xcb_get_maximum_request_length will return the prefetched data after possibly blocking while the reply is retrieved. Note that in order for this function to be fully non-blocking, the application must previously have called xcb_prefetch_extension_data(c, &xcb_big_requests_id) and the reply must have already arrived. |
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Return the error for a request, or NULL if none can ever arrive.
Note that this function will perform a sync if needed to ensure that the sequence number will advance beyond that provided in cookie; this is a convenience to avoid races in determining whether the sync is needed. |
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Returns the next event or error from the server.
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