Creates a new #GUnixOutputStream for the given @fd.
If @close_fd, is %TRUE, the file descriptor will be closed when the output stream is destroyed.
a UNIX file descriptor
%TRUE to close the file descriptor when done
a new #GOutputStream
ConstructionException GTK+ fails to create the object.
See Implementation
Creates a new #GUnixOutputStream for the given @fd.
If @close_fd, is %TRUE, the file descriptor will be closed when the output stream is destroyed.