Using the AduHid DLL - Introduction

The AduHid Dynamic Link Library (DLL) allows programs to communicate with Ontrak ADU devices.

This document describes the Application Programming Interface (API) that the AduHid.dll provides.

Experienced programmers can read the Overview and then jump to the Quick-Start page for their environment.

Beginners can read the Overview and then follow the click-by-click instructions to build a simple application.

Advanced Topics include timeout processing and using multiple ADU devices on one computer.

Overview

The AduHid allows a program to communicate with an ADU device through a pipe. Three types of pipes are provided.
ADU Device Pipe
ADU RS232 Pipe
ADU Stream Pipe (optional)

Visual Basic and C Programming Instructions

Instructions for creating a simple application that uses the AduHid.DLL

• C#  Example (Visual Studio 2019)
• Visual Basic Example (Visual Studio 2015)
• Click-by-click with C (Visual Studio) (legacy)
• Click-by-click with Visual Basic (legacy)

Quick Start

These links are for programmers conversant with building applications.

• Quick Start with C
• Quick Start with Visual Basic

Detailed Documentation

Functions
Common Error Codes

Advanced Topics

Timeouts
Multiple ADU Devices
Device List Example Code

Appendices

Common Error Codes
AudHid.h Header File For C
AduHid API Declarations for Visual Basic
ADU_DEVICE_ID Structure
AudHidTest Program

AduHid Help File Version 1.0