pub unsafe extern "C" fn vaCopy(
dpy: *mut c_void,
dst: *mut _VACopyObject,
src: *mut _VACopyObject,
option: _VACopyOption
) -> c_int
pub unsafe extern "C" fn vaCopy(
dpy: *mut c_void,
dst: *mut _VACopyObject,
src: *mut _VACopyObject,
option: _VACopyOption
) -> c_int