Text (Console) Interfaces

The easiest way is to use the basic I/O commands.

Next comes the GT (Graphic Terminal) system (rough descriptions at http://harbourlanguage.blogspot.it/2010/04/harbour-gt.html and https://github.com/vszakats/harbour-core/blob/master/doc/gtapi.txt). Let us start with two simple examples.

FUNCTION One
   ? "Running function One"
   RETURN

PROCEDURE Two
   ? "Running procedure Two"
   RETURN

PROCEDURE MAIN

   // Display menu choices.

   @ 3, 25 PROMPT "First choice"
   @ 4, 25 PROMPT "Second choice"

   // Get menu key.
   MENU TO choice

   // Perform an action based on your menu choice.
   DO CASE
   CASE choice = 0
      RETURN
   CASE choice = 1
      DO One
   CASE choice = 2
      DO Two
   ENDCASE

   RETURN

Here is an example taken directly from the Harbour documentation:

// display a two line menu with status line at the bottom
// let the user select favorite day
SET MESSAGE TO 24 CENTER
@ 10, 2 PROMPT "Sunday" MESSAGE "This is the 1st item"
@ 11, 2 PROMPT "Monday" MESSAGE "Now we're on the 2nd item"
MENU TO nChoice
DO CASE
CASE nChoice == 0           // user press Esc key
QUIT
CASE nChoice == 1           // user select 1st menu item
? "Guess you don't like Mondays"
CASE nChoice == 2           // user select 2nd menu item
? "Just another day for some"
ENDCASE

This example introduces the command

SET MESSAGE TO [<nRow> [CENTER]]

Extablishes a message row for @...PROMPT command

GTWVT
GTWVW (hb30\examples\gtwvw)
GTWVG (by Giovanni di Maria) http://www.elektrosoft.it/tutorials/gtwvg/gtwvg.asp

GUI Design

Getting A Library

This section focuses on the use of some libraries for producing a Graphical User Interface.

Library	URL	Notes	Tutorial/Documentation URL
HbQt	https://sourceforge.net/projects/qtcontribs/	see \hb30\contrib\hbqt (QtContribs includes HbQt, HbIDE & HbDBU)	http://www.elektrosoft.it/tutorials/hbqt/hbqt.asp
HMG	https://sites.google.com/site/hmgweb/ http://sourceforge.net/projects/hmg	RAD	https://sites.google.com/site/hmgweb/tutorial http://www.hmgforum.com/hmgdoc/data/index.htm
Harbour MiniGUI Extended Edition	http://www.hmgextended.com/ https://hmgextended.org/	RAD	http://www.hmgextended.com/files/manual/index.html http://www.hmgextended.com/files/winreport/index.html
wxHarbour	http://sourceforge.net/projects/wxharbour/	bindings for wxWidgets Last Update: 2016-08-24
ooHG	https://oohg.github.io/
Marinas-GUI	http://marinas-gui.org/	a wrapper for Harbour with Qt	http://www.marinas-tools.com.ar/
HwGUI	http://sourceforge.net/projects/hwgui/	Last Update: 2019-06-11	http://www.kresin.ru/en/hwgdoc.html
T-Gtk GUI for [x]Harbour	https://sourceforge.net/projects/t-gtk/	Last Update: 2019-06-24
WoopGUI - A Win32 OOP GUI Library for Harbour	http://woopgui.sourceforge.net/	Last updated: 2002/05/22
xhgtk	https://sourceforge.net/projects/xhgtk/
HBUI	https://github.com/RJopek/HBUI
hbgi	https://github.com/tuffnatty/hbgi

Commercial software is, for instance, Fivewin for Harbour (FWH)

FiveWin is original a library for Clipper 5 which you ... More info can be found here: https://www.fivetechsoft.com/english/index.php

HwGUI

The latest HwGUI version needs the nightly build of Harbour.

HMG-IDE (by Roberto Lopez)

Download following link at https://sites.google.com/site/hmgweb/

Run the executable file C:\hmg.3.4.0\IDE\IDE.exe

The first example to get started follows.

Select the menu File | New Project
and give it a name such as "first"
change the Form Title with "First Test" using the Object Inspector Properties tab
select a Button and put it on the form
change the Button Caption with "Click me for a test!" using the Object Inspector Properties tab
select the Events tab of the Object Inspector and type in "ClickTest()" in the Value field corresponding to the Action event
select Modules in the Project Browser window and double click on main.prg
add the following code

Procedure ClickTest()
  Main.Button_1.Caption := "Test done"
Return

and save the file

Punch the F5 key, or select the menu Project | Run, or select the Run button on the Control Panel

The program to edit source code is defined under Tools | Preferences. I find myself at ease with SciTE (https://www.scintilla.org/SciTEDownload.html).

See http://www.elektrosoft.it/tutorials/hmg/hmg.asp

HMG-IDE (by Walter Formigoni)

http://hmgs-minigui.sourceforge.net/