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xcb_grab_keyboard(3)		 XCB Requests		  xcb_grab_keyboard(3)

NAME
       xcb_grab_keyboard - Grab	the keyboard

SYNOPSIS
       #include	<xcb/xproto.h>

   Request function

       xcb_grab_keyboard_cookie_t xcb_grab_keyboard(xcb_connection_t *conn,
	      uint8_t owner_events, xcb_window_t grab_window,
	      xcb_timestamp_t time, uint8_t pointer_mode,
	      uint8_t keyboard_mode);

   Reply datastructure
       typedef struct xcb_grab_keyboard_reply_t	{
	   uint8_t  response_type;
	   uint8_t  status;
	   uint16_t sequence;
	   uint32_t length;
       } xcb_grab_keyboard_reply_t;

   Reply function

       xcb_grab_keyboard_reply_t
	      *xcb_grab_keyboard_reply(xcb_connection_t	*conn,
	      xcb_grab_keyboard_cookie_t cookie, xcb_generic_error_t **e);

REQUEST	ARGUMENTS
       conn	 The XCB connection to X11.

       owner_events
		 If  1,	 the grab_window will still get	the pointer events. If
		 0, events are not reported to the grab_window.

       grab_window
		 Specifies the window on which the pointer should be grabbed.

       time	 Timestamp to avoid race conditions when running  X  over  the
		 network.

		 The  special value XCB_CURRENT_TIME will be replaced with the
		 current server	time.

       pointer_mode
		 One of	the following values:

		 XCB_GRAB_MODE_SYNC
			   The state of	the keyboard  appears  to  freeze:  No
			   further keyboard events are generated by the	server
			   until the grabbing client issues a releasing	Allow-
			   Events  request  or	until the keyboard grab	is re-
			   leased.

		 XCB_GRAB_MODE_ASYNC
			   Keyboard event processing continues normally.

       keyboard_mode
		 One of	the following values:

		 XCB_GRAB_MODE_SYNC
			   The state of	the keyboard  appears  to  freeze:  No
			   further keyboard events are generated by the	server
			   until the grabbing client issues a releasing	Allow-
			   Events  request  or	until the keyboard grab	is re-
			   leased.

		 XCB_GRAB_MODE_ASYNC
			   Keyboard event processing continues normally.

REPLY FIELDS
       response_type
		 The type of this reply, in this case XCB_GRAB_KEYBOARD.  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).

       status	 One of	the following values:

		 XCB_GRAB_STATUS_SUCCESS
			   TODO: NOT YET DOCUMENTED.

		 XCB_GRAB_STATUS_ALREADY_GRABBED
			   TODO: NOT YET DOCUMENTED.

		 XCB_GRAB_STATUS_INVALID_TIME
			   TODO: NOT YET DOCUMENTED.

		 XCB_GRAB_STATUS_NOT_VIEWABLE
			   TODO: NOT YET DOCUMENTED.

		 XCB_GRAB_STATUS_FROZEN
			   TODO: NOT YET DOCUMENTED.
		 TODO: NOT YET DOCUMENTED.

DESCRIPTION
       Actively	 grabs control of the keyboard and generates FocusIn and Focu-
       sOut events. Further key	events	are  reported  only  to	 the  grabbing
       client.

       Any  active keyboard grab by this client	is overridden. If the keyboard
       is actively grabbed by some other client, AlreadyGrabbed	 is  returned.
       If  grab_window	is  not	 viewable, GrabNotViewable is returned.	If the
       keyboard	is frozen by an	active grab of another client,	GrabFrozen  is
       returned.  If the specified time	is earlier than	the last-keyboard-grab
       time or later than the current X	server time,  GrabInvalidTime  is  re-
       turned.	Otherwise, the last-keyboard-grab time is set to the specified
       time.

RETURN VALUE
       Returns an xcb_grab_keyboard_cookie_t. Errors have to be	 handled  when
       calling the reply function xcb_grab_keyboard_reply.

       If   you	 want  to  handle  errors  in  the  event  loop	 instead,  use
       xcb_grab_keyboard_unchecked. See	xcb-requests(3)	for details.

ERRORS
       xcb_value_error_t
		 TODO: reasons?

       xcb_window_error_t
		 The specified window does not exist.

EXAMPLE
       /*
	* Grabs	the keyboard actively
	*
	*/
       void my_example(xcb_connection_t	*conn, xcb_screen_t *screen) {
	   xcb_grab_keyboard_cookie_t cookie;
	   xcb_grab_keyboard_reply_t *reply;

	   cookie = xcb_grab_keyboard(
	       conn,
	       true,		    /* report events */
	       screen->root,	    /* grab the	root window */
	       XCB_CURRENT_TIME,
	       XCB_GRAB_MODE_ASYNC, /* process events as normal, do not	require	sync */
	       XCB_GRAB_MODE_ASYNC
	   );

	   if ((reply =	xcb_grab_keyboard_reply(conn, cookie, NULL))) {
	       if (reply->status == XCB_GRAB_STATUS_SUCCESS)
		   printf("successfully	grabbed	the keyboard\n");

	       free(reply);
	   }
       }

SEE ALSO
       xcb-requests(3),	xcb-examples(3), xcb_grab_pointer(3)

AUTHOR
       Generated from xproto.xml. Contact xcb@lists.freedesktop.org  for  cor-
       rections	and improvements.

X Version 11			 libxcb	1.17.0		  xcb_grab_keyboard(3)

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