FreeBSD manual
download PDF document: xcb_shm_attach_fd.3.pdf
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
corrections and improvements.
X Version 11 libxcb 1.17.0 xcb_shm_attach_fd(3)