Function dpiMsgProps_setPayloadObject 

pub unsafe extern "C" fn dpiMsgProps_setPayloadObject(
    props: *mut dpiMsgProps,
    obj: *mut dpiObject,
) -> c_int

Sets the payload for the message as an object. This value will be used when the message is enqueued using dpiQueue_enqOne() or dpiQueue_enqMany().

The function returns DPI_SUCCESS for success and DPI_FAILURE for failure.