Function icsneo_getPollingMessageLimit 

pub unsafe extern "C" fn icsneo_getPollingMessageLimit(
    device: *const neodevice_t,
) -> c_int

\brief Get the maximum number of messages which will be held in the API managed buffer for the specified hardware. \param[in] device A pointer to the neodevice_t structure specifying the device to operate on. \returns Number of messages, or -1 if device is invalid.

See icsneo_enableMessagePolling() for more information about the message polling system.