Function xcb::ffi::xproto::xcb_lookup_color_unchecked

pub unsafe extern "C" fn xcb_lookup_color_unchecked(
    c: *mut xcb_connection_t, 
    cmap: xcb_colormap_t, 
    name_len: u16, 
    name: *const c_char
) -> xcb_lookup_color_cookie_t