Function xcb::ffi::xfixes::xcb_xfixes_create_pointer_barrier_checked

pub unsafe extern "C" fn xcb_xfixes_create_pointer_barrier_checked(
    c: *mut xcb_connection_t, 
    barrier: xcb_xfixes_barrier_t, 
    window: xcb_window_t, 
    x1: u16, 
    y1: u16, 
    x2: u16, 
    y2: u16, 
    directions: u32, 
    num_devices: u16, 
    devices: *const u16
) -> xcb_void_cookie_t