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xcb_shm_attach_fd(3)		 XCB Requests		  xcb_shm_attach_fd(3)

NAME
       xcb_shm_attach_fd - Create a shared memory segment

SYNOPSIS
       #include	<xcb/shm.h>

   Request function

       xcb_void_cookie_t xcb_shm_attach_fd(xcb_connection_t *conn,
	      xcb_shm_seg_t shmseg, int32_t shm_fd, uint8_t read_only);

REQUEST	ARGUMENTS
       conn	 The XCB connection to X11.

       shmseg	 A shared memory segment ID created with xcb_generate_id().

       shm_fd	 The file descriptor the server	should mmap().

       read_only True  if  the	segment	 shall	be mapped read only by the X11
		 server, otherwise false.

DESCRIPTION
       Create a	shared memory segment.	The file descriptor will be mapped  at
       offset  zero, and the size will be obtained using fstat().  A zero size
       will result in a	Value error.

RETURN VALUE
       Returns an xcb_void_cookie_t. Errors (if	any) have to be	handled	in the
       event loop.

       If you want to handle errors directly with  xcb_request_check  instead,
       use xcb_shm_attach_fd_checked. See xcb-requests(3) for details.

ERRORS
       This request does never generate	any errors.

SEE ALSO
       xcb-requests(3)

AUTHOR
       Generated  from	shm.xml. Contact xcb@lists.freedesktop.org for correc-
       tions and improvements.

X Version 11			 libxcb	1.17.0		  xcb_shm_attach_fd(3)

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<https://man.freebsd.org/cgi/man.cgi?query=xcb_shm_attach_fd_checked&sektion=3&manpath=FreeBSD+Ports+14.3.quarterly>

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