Links

General :

HMG :

HMG-Web

HMG Forum 

HMG-Extended

OOHG : Object Oriented Harbour GUI

Marinas-GUI

Harbour :

The Harbour Project Home

HB_IDE

Common :

Alexander Kresin

Clipper… Clipper… Clipper

Programación Harbour (by Miguel Angel Juárez Apaza)

The Oasis: the largest file archive for Clipper and x-Base on the web

HMG Page by Pepe Ruano (Spanish)

The Holmes’s Clipper Page : Useful infos on Clipper

Various sources for Harbour Minigui

From CA-Clipper to Windows in 5 Minutes

Clipper to Harbour – A Visual Tour by Pritpal Bedi

Clipper On Line (Portugues)

Harbour MiniGUI Lights (Portugues)

Windows

Windows Programming

Other :

MinGW : Minimalist GNU for Windows

Crimson Editor : A professional source code editor for Windows.

Notepad++ : a free source code editor

PSPad : a freeware programmer’s editor

UPX : The Ultimate Packer for eXecutables

Inno Setup : A free installer for Windows programs.

GTK : A multi-platform toolkit for building graphical user interfaces.

Groups and mailling lists :

Harbour Project users’ mailing list

Harbour Project developers’ mailing list

Harbour Community in Google Plus

Harbour MiniGUI Discussion

xMate : a freeware project manager and builder

Harbour MiniGUI (HMG) En Español

MiniGUI em Português

Grupo ooHG : Minigui compatible Graphic Library, class based and oop programming

MiniGui Rutinas : Grupo para compartir cualquier tipo de rutinas de Minigui extended, HMG, OOH

Oficial mailing list: Marinas-GUI

Documentations :

Clipper:

ITL Programming

OOHG

Norton Guides (OuSob)

Norton Guides (x-hacker)

Dave Pearson

Harbour: 

Download / Install          

 How to build harbour for windows

 Harbour download and compile

Language references

Great guides and Tutorials by  Giovanni Di Maria

Official

Harbour Online Help

Harbour Language programming

FiveWin 

Vouch

OOHG

Marinas-GUI

Harbour collection Bis

HMG 

Official

 MiniGui Extended For Dummies

There are multiple news, discussion and mail groups about Clipper, Harbour and HMG. Surely, if you search, you will find more convenient to your needs. There are also a lot of individual web sites where you can obtain useful information on the subject.

Selected Chapters (PDF)

Basic Concepts

The Structure of a Clipper Program

Functions and Procedures

Control Structures

Variables

Expressions and Data Types

Operators

The Macro (&) Operator

Arrays

Code Blocks

Objects and Messages

The Database System

The Input-Output System

The Keyboard System

The Low-Level File System

The Browse System

The Get System

Serial Communications with CA-Clipper Tools

Network Programming

Using The Extend System

Extend Functions

DOS Errors

Clipper and Networking