Guadalajara, Jalisco, Mexico   2 Mayo 2003, 27 Febrero 2004
I.Q. David Arturo Macias Corona

Presentation of ClipNet-xNet Model

OBJECTIVE:
Presentation of ClipNet-xNet Model, oriented to clipxnet.exe program

Is sugested to use monospaced font, consult in complete screen and
use of search functions to locate quickly document segments


IMPORTANT
Due to lack of time for translating Spanish to English, this document cover only
introduction and instructions for implement ClipNet-xNet in different Web Servers
programs
As samples are made using Clipper code, them and ClipNet-xNet application can be
easily seen and applied

Version en Espa¤ol

CONTENT:
0.   Introduction

16.   Preparation for samples about use of clipxnet.exe
      16a. Xitami Web Server
      16b. Apache for Linux
      16c. Apache for OS/2
      16d. Apache for Win32
      16e. Microsoft IIS:Internet Information Server version 5.0

17.   Samples, samples and more samples



0.   Introduction

This work is an presentation of "Modelo ClipNet-xNet", oriented to an executable file
which can be used as:

"Clipper language interpreter", in two modes:
#  Command line, as Scripts language with Clipper code
#  Web Server, as:
  + CGI program
  + Interpreter of own Scripts or equivalent to ASP, PHP, Perl, ... but using Clipper code

#  Document "clipxnet.htm" is an general description of model elements, requirements
for tests and an good amount of samples
In addition, are exposed many ways for connect and use other new or current systems
for generation of dinamic content, and are explained different techniques for modify
current systems and apply them with ClipNet-xNet Model

#  ClipNet-xNet Model can manage and interpret differents format of files with
Clipper code, as those used with extensions .fml, .sgs, .hs, .hrb and .prg
In command line any extension can be used

#  ClipNet-xNet Model can be applied with different Web server programs, including:
 Xitami in Win32, OS/2 and Linux, Apache in Win32, OS/2 and Linux, IIS 5.0 in Win32

#  Is posible too to apply generation of dinamic graphs using TGraph 3 Model
with FiveWin or Citlalli Model with FiveWin

#  ClipNet-xNet let to access and modify databases in an Intra/Extra/Inter-Net environment,
 without need of any other module:
 - DBF type databases
 - MySQL type databases
 
ClipNet-xNet Model is made with Harbour 43++ (February 2004) and can be used in Win32, OS/2
and Linux, using native RDD, and/or RDD for ADS Local or Remote, and/or MySQL servers



16.   Preparation for samples about use of clipxnet.exe

# You can choose desired platforms: Win32 (Win98/2000/XP/...), OS/2, Linux
# Unpack clipxnet.zip file, preferently in c:\clipxnet directory in Win32, OS/2 and
/clipxnet in Linux, and using directories included
# Is included implementation description using different Web Server programs,
which are necesary for tests AND USE of clipxnet.exe in your own Web systems, in local
machine, local network, wide network or Internet
# All tests and samples are functional in each one of environments described for
each Web Server, but anyway, you can implement in different directories or
configurations based in your preferences
# Any other directories can be used for database files, for what is necessary to
modify location references in samples files. Actually is using directory where 
clipxnet.exe is executed as directory of database files, in most cases



16a.    Xitami Web Server

# As Xitami Web Server is multiplatform, configuration is similar in any of them
You can choose platforms: Win32 (Win98/2000/XP/...), OS/2, Linux
I included Xitami programs I am using in each platform
# Preferently use default directories structure, installing in:
  c:\xitami\    Win32 y OS/2
  /xitami/      Linux
Notes:
- In Linux case, is necesary to "recompile", but it is not difficult
  Refer to documentation and use ./xibuild
- In Linux case, I use "root" user. For other users, permissions, etc.,
refer to documentation and your Linux knowledge
# If you have installed another Web Server using port 80, change Xitami port in any of this ways:
  + Edit xitami.cfg and apply:
    portbase=5000                          #   e.g. 5000 for port 5080
  + or, use xitami -b 5000 for Xitami execution
Later, navigator must be "oriented" to Xitami port
  http://address:5080

# After installing Xitami, you MUST define clipxnet.exe as the
program/module/"interpreter" filter for .fml, .sgs, .hs type pages

"Insertion 20030723"
Were included .hrb and .prg extensions

  In section [Filter] of xitami.cfg or defaults.cfg you must add:
    .sgs=clipxnet.exe
    .hs=clipxnet.exe
    .fml=clipxnet.exe
    .hrb=clipxnet.exe
    .prg=clipxnet.exe

In this simple way you have clipxnet.exe as pages "interpreter" with Clipper code

Observation: In Linux you can use clipxnet.exe programs or rename them as clipxnet
In Xitami I am using clipxnet.exe to keep same values with other platforms
If you choose to use clipxnet, change references where is needed

# Copy clipxnet.exe file of proper type to directories:
  \xitami\
  \xitami\cgi-bin\
Proper type is refering to Win32, OS/2, Linux, with ADS, without ADS, etc.

# Copy files of directory \clipxnet\webpages\ to directory:
  \xitami\webpages\
# Copy files of directory \clipxnet\dbf\ to directory
  \xitami\
  Observation:
  Only are included .dbf files with .cdx index file type
# Copy files inter_01.exe, inter_02.exe of proper type to directory:
  \xitami\
Proper type is refering to Win32, OS/2, Linux. They do not include ADS support
# Copy files htg3xnet.exe, nconvert.exe to directory:
  \xitami\

"Insertion 20030723"
# Copy file inter_01.hrb to directory:
  \xitami\

"Insertion 20030723"
# Copy file inter_01.prg to directory:
  \xitami\
If it is needed, copy harbour.exe file to directory \xitami\

# If you want to use ADS:
Observation: If this listed files are not copied, there will be an runtime error which will not 
be properly reported by Xitami
  + Must be copied clipxnet.exe file from proper ....\CONADS directory
  
  "Insertion 20040227"
  Due to inclusion of MySQL support, there are files with ADS support without and with MySQL
  support, which are in ....\conads and ....\conadsmysql, and if is choosed that with
  MySQL support, instructions for MySQL support must be applied

  + Must be copied additional ADS files:
    Win32: Copy to directories:
      \xitami
      \xitami\cgi-bin
      the files:
      ACE32.dll      Functions
      AXCWS32.dll    Communications to ADS Remote
      ADSLOC32.dll   ADS Local
      - This files belong to ADS 5.7 version
      - Clipxnet.exe is created with ADS 5.7 libraries
      "Insertion 20040227"
      - Programs with ADS support has been created with ADS 6.2x libraries

    Linux:
      "Download" from
      http://www.advantagedatabase.com 
       "Developer Zone" section, the file:
        adsapi-6.20.0.tar.gz
      and install it. Installation distribute libraries files needed in proper directories
      - Clipxnet.exe (clipxnet) are created with ADS 6.20 libraries
      
  + You can use ADS Local or ADS Remote
  + Is recommended to install ARC: Advantage Data Architect for review / testing of
    database files. I am using the files:
      http://www.advantagedatabase.com 
      "Developer Zone" section,
      Win32: ARC6.11.06.exe,  ARC32.6.20.0.7.exe
      Linux: arc-6.20.0.tar.gz

"Insertion 20040227"
# If you want to use MySQL:
Observation: If this listed files are not copied, there will be an runtime error which will not 
be properly reported by Xitami
  + Must be copied clipxnet.exe file from ....\conmysql, without ADS support,
  or ....\conadsmysql with ADS support, for which instructions for ADS support must
  be applied
  
  + Must be copied additional MySQL files:
    Win32: Copy to directories:
      \xitami
      \xitami\cgi-bin
      the files:
      LibMySQL.dll      Functions
      - Clipxnet.exe are created with MySQL 3.23.57 libraries for Win32
      
    OS/2: Copy to directories:
      \xitami
      \xitami\cgi-bin
      the files:
      mysql.dll
      mysqlu.dll
      - Clipxnet.exe are created with MySQL 3.23.50 libraries for OS/2

    Linux:
      Usually Linux have installed an MySQL Server, with needed libraries in proper directories
      - Clipxnet.exe (clipxnet) are created with MySQL 3.23.47 libraries for Linux

  + Can be used MySQL in local way (same computer) or remote way

# And, finally, execute  Xitami Web Server
  Xitami indicate which IP addresses and ports are "listening", both for http and ftp
# Using the Navigator pointing to address http://address
where: address is IP number or name of computer which is using Xitami, or 127.0.0.1
  If port number was changed, use that indicated by Xitami:
  http://address:port
When initial page is not specified, Xitami show the documentation, which is very adequate
Is convenient and interesting to read this documentation
# Use the Navigator pointing to address:
  http://address/clipxnet.htm
  http://address:port/clipxnet.htm    if port was changed
  This page is shown


16b.    Apache for Linux

#  Implementation tests were made in:
  + Linux Mandrake 8.2, 9
  + Linux RedHat 7.3, 8
Note: Mandrake and RedHat are using different Apache versions:
  + Mandrake:
    Apache-AdvancedExtranetServer/1.3.26 (Mandrake Linux/6mdk) sxnet/1.2.4 mod_ssl/2.8.10 OpenSSL/0.9.6g PHP/4.2.3
  + RedHat:
    Apache 2.0.40
#  In Linux case, I use "root" user. For other users, permissions, etc.,
refer to documentation and your Linux knowledge

# You MUST define clipxnet as the program/module/"interpreter" filter for .fml, .sgs, .hs
type pages

    IMPORTANT observations:
    - For Apache is convenient to name executable as clipxnet, for what is enough to copy
      or rename clipxnet.exe as clipxnet
    - There are other executables files with n prefix, named nclipxnet.exe
      This are created with ncurses libraries for console management, and must be used
      in command line to make programs with user interface, containing 
      input/output procceses with user interaction
      They can be used directly or renamed as clipxnet.exe or clipxnet
      They can not be used throught Web Server

"Insertion 20030723"
Were included .hrb and .prg extensions

  For Linux Mandrake, use file /etc/httpd/conf/commonhttpd.conf
  For Linux RedHat,   use file /etc/httpd/conf/httpd.conf
     This file include httpd.conf and commonhttpd.conf files which are separate
     in Linux Mandrake

  + After this section:

#
# Action lets you define media types that will execute a script whenever
# a matching file is called. This eliminates the need for repeated URL
# pathnames for oft-used CGI file processors.
# Format: Action media/type /cgi-script/location
# Format: Action handler-name /cgi-script/location
#

    apply the next section:

# Files of a particular file extension
# DAVID: Configuracion para los "Scripts" del Modelo ClipNet-xNet
#Handler "clipxnet" y programa interpretador "cgi-bin/clipxnet":
Action clipxnet /cgi-bin/clipxnet

#Extensiones asociadas al Handler "clipxnet":
AddHandler clipxnet .fml
AddHandler clipxnet .sgs
AddHandler clipxnet .hs
AddHandler clipxnet .hrb
AddHandler clipxnet .prg

# Tipos MIME para las extensiones asociadas al Handler "clipxnet":
AddType text/html .fml
AddType text/html .sgs
AddType text/html .hs
AddType text/html .hrb
AddType text/html .prg


In this simple way you have clipxnet as pages "interpreter" with Clipper code

Observation: In Apache for Linux should be used clipxnet file in place of clipxnet.exe,
even both are identical. Is applied in this way because .exe extension is considered
for an file download
MIME type for .exe can be changed, but this require an additional modification low
useful, when is enough to use clipxnet as executable program

# In section:  Directory /var/www/cgi-bin
  verify existance of next line:
     Allow from all
  Without this line, can not access and execute clipxnet program or others residing
  in same directory

# Copy clipxnet file of proper type to directories:
  /var/www/cgi-bin/
Proper type is refering to Linux with ADS, without ADS, etc.

# Copy files of directory /clipxnet/webpages/ to directory:
  /var/www/html/
# Copy files of directory /clipxnet/dbf/ to directory
  /var/www/cgi-bin/
  Observation:
  + Only are included .dbf files with .cdx index file type
  + Is required to enable read/write permissions in order to access and modify
    database files
    You can apply it using:
    chmod 777 *.dbf
    chmod 777 *.cdx
    chmod 777 *.fpt

# Copy files inter_01.exe, inter_02.exe of proper type to directory:
  /var/www/cgi-bin/
Proper type is refering to Win32, OS/2, Linux. They do not include ADS support
# Copy files htg3xnet.exe, nconvert.exe to directory:
  /var/www/cgi-bin/
Observation: To use htg3xnet.exe and nconvert.exe is required to have WINE support

"Insertion 20030723"
# Copy file inter_01.hrb to directory:
  /var/www/cgi-bin/

"Insertion 20030723"
# Copy file inter_01.prg to directory:
  /var/www/cgi-bin/

# Enable "Write" permissions for "Group" and "Others" users to directory:
  /var/www/cgi-bin/
  Without this permissions can not create and use some temporary files needed

# If you want to use ADS:
Observation: If this listed files are not copied, there will be an runtime error which will not 
be properly reported by Web Server
  + Must be copied clipxnet file from proper ....\CONADS directory

  "Insertion 20040227"
  Due to inclusion of MySQL support, there are files with ADS support without and with MySQL
  support, which are in ....\conads and ....\conadsmysql, and if is choosed that with
  MySQL support, instructions for MySQL support must be applied

  + Must be copied additional ADS files:
    Linux:
      "Download" from
      http://www.advantagedatabase.com 
       "Developer Zone" section, the file:
        adsapi-6.20.0.tar.gz
      and install it. Installation distribute libraries files needed in proper directories
      - Clipxnet.exe (clipxnet) are created with ADS 6.20 libraries
      
  + You can use ADS Local or ADS Remote
  + Is recommended to install ARC: Advantage Data Architect for review / testing of
    database files. I am using the files:
      http://www.advantagedatabase.com 
      "Developer Zone" section,
      Linux: arc-6.20.0.tar.gz

"Insertion 20040227"
# If you want to use MySQL:
Observation: If this listed files are not copied, there will be an runtime error which will not 
be properly reported by Web Server
  + Must be copied clipxnet file from ....\conmysql, without ADS support,
  or ....\conadsmysql with ADS support, for which instructions for ADS support must
  be applied
  
  + Must be copied additional MySQL files:
    Linux:
      Usually Linux have installed an MySQL Server, with needed libraries in proper directories
      - Clipxnet.exe (clipxnet) are created with MySQL 3.23.47 libraries for Linux

  + Can be used MySQL in local way (same computer) or remote way

# And, finally, re-start "httpd" service (daemon) in order to apply new configurations

# Using the Navigator pointing to address http://address
where: address is IP number or name of computer which is using Apache, or 127.0.0.1
When initial page is not specified, Apache show the documentation, which is very adequate
Is convenient and interesting to read this documentation
# Use the Navigator pointing to address:
  http://address/clipxnet.htm
  This page is shown



16c.    Apache for OS/2

#  Implementation tests were made in:
  + eComStation 1.0, 1.1
  and were used two versions of Apache for OS/2
  a) Apache 1.3.26, directory  f:\apache
  b) Apache 2.0.40, directory  f:\Apps\apache2
  Default directories were applied
  In next both directories will be refered in common as:
    "directory_apache"
    

# You MUST define clipxnet.exe as the program/module/"interpreter" filter for .fml, .sgs, .hs
type pages

"Insertion 20030723"
Were included .hrb and .prg extensions

  Use directory_apache\conf\httpd.conf file

  + After this section:

#
# Action lets you define media types that will execute a script whenever
# a matching file is called. This eliminates the need for repeated URL
# pathnames for oft-used CGI file processors.
# Format: Action media/type /cgi-script/location
# Format: Action handler-name /cgi-script/location
#

    apply the next section:

# Files of a particular file extension
# DAVID: Configuracion para los "Scripts" del Modelo ClipNet-xNet
#Handler "clipxnet" y programa interpretador "cgi-bin/clipxnet.exe":
Action clipxnet /cgi-bin/clipxnet.exe

#Extensiones asociadas al Handler "clipxnet":
AddHandler clipxnet .fml
AddHandler clipxnet .sgs
AddHandler clipxnet .hs
AddHandler clipxnet .hrb
AddHandler clipxnet .prg

# Tipos MIME para las extensiones asociadas al Handler "clipxnet":
AddType text/html .fml
AddType text/html .sgs
AddType text/html .hs
AddType text/html .hrb
AddType text/html .prg

In this simple way you have clipxnet.exe as pages "interpreter" with Clipper code

# In section:  Directory directory_apache/cgi-bin
  verify existance of next line:
     Allow from all
  Without this line, can not access and execute clipxnet.exe program or others residing
  in same directory

# Copy clipxnet.exe file to directories:
  directory_apache\cgi-bin\

# Copy files of directory \clipxnet\webpages\ to directory:
  directory_apache\htdocs\
# Copy files of directory \clipxnet\dbf\ to directory
  directory_apache\cgi-bin\
  Observation:
  + Only are included .dbf files with .cdx index file type

# Copy files inter_01.exe, inter_02.exe to directory:
  directory_apache\cgi-bin\
# Copy files htg3xnet.exe, nconvert.exe to directory:
  directory_apache\cgi-bin\
Observation: To use htg3xnet.exe and nconvert.exe is required to have ODIN support, with PE

"Insertion 20030723"
# Copy file inter_01.hrb to directory:
  directory_apache\cgi-bin\

"Insertion 20030723"
# Copy file inter_01.prg to directory:
  directory_apache\cgi-bin\
If it is needed, copy harbour.exe file to directory
  directory_apache\cgi-bin\

"Insertion 20040227"
# If you want to use MySQL:
Observation: If this listed files are not copied, there will be an runtime error which will not 
be properly reported by Web Server
  + Must be copied clipxnet.exe file from ....\conmysql
  
  + Must be copied additional MySQL files:
    OS/2: Copy to directories:
      directory_apache\cgi-bin\
      the files:
      mysql.dll
      mysqlu.dll
      - Clipxnet.exe are created with MySQL 3.23.50 libraries for OS/2
  
  + Can be used MySQL in local way (same computer) or remote way

# And, finally, re-start Apache in order to apply new configurations
  Apache 1.3.26: directory_apache\httpd
  Apache 2.0.40: directory_apache\startup.cmd

# Using the Navigator pointing to address http://address
where: address is IP number or name of computer which is using Apache, or 127.0.0.1
When initial page is not specified, Apache show the documentation, which is very adequate
Is convenient and interesting to read this documentation
# Use the Navigator pointing to address:
  http://address/clipxnet.htm
  This page is shown



16d.    Apache for Win32

#  This implementation has not been tested for myself.
But it is working fine
#  Based in information from Rafa R. Gaona (translated):
"At 12:52 pm 08/14/03 +0200, you wrote:
 >Well David now you have system in Apache Windows
 >Just to tell you with changes refered for Linux/os2 are valid too
 >for windows (mine is 2000).
 >Everything is identical in directory conf\httpd.conf
 >There are not more things to do ;-)) "

we can see as enough to follow similar instructions of Apache, preferently for OS/2,
in order to have convenient configuration in Apache for Win32
#  Obviously must be used executable files corresponding to Win32
If ADS support and/or MySQL support will be used, follow instructions in Xitami for
Win32 or IIS 5.0



16e.    Microsoft IIS:Internet Information Server version 5.0

#  Implementation tests were made using root directory of IIS:
  c:\inetpub\wwwroot\
  Others directories can be used defining virtual directories and making changes
  in references to directories

# You MUST define clipxnet.exe as the program/module/"interpreter" filter for .fml, .sgs, .hs
type pages

"Insertion 20030723"
Were included .hrb and .prg extensions

Follow next sequence in Win2000 or apply that corresponding to your system:
(Thanks to Luis Krause Mantilla)
- Control Panel
  Administrative Tools
    Internet Services Manager
    Open the tree structure and look for "Default Web Site" branch
    Right Click and choose Properties
        Choose the "Home Directory" tab
           Click the "Configuration..." button
           Click the "Add" button
            Executable: c:\inetpub\wwwroot\clipxnet.exe
            Extension: fml
           Add
            Executable: c:\inetpub\wwwroot\clipxnet.exe
            Extension: sgs
           Add
            Executable: c:\inetpub\wwwroot\clipxnet.exe
            Extension: hs

          Add
           Executable: c:\inetpub\wwwroot\clipxnet.exe
           Extension: hrb
          Add
           Executable: c:\inetpub\wwwroot\clipxnet.exe
           Extension: prg

# Additionally set properties:
Control Panel
   Administrative Tools
      Personal Web Manager
        Advanced icon
         Then Right-click on the  virtual directories on the right 
side and choose Properties...
             In the "Access permissions" section check "Read" and 
"Write"; leave "Script Source Access" unchecked
             In the "Application permissions" section select the 
"Scripts" radiobutton.
ONLY choose "Execute (including scripts)" if you need to execute clipxnet.exe directly,
or other CGI program.

In this not simple way you have clipxnet.exe as pages "interpreter" with Clipper code

# Copy clipxnet.exe file of proper type to directories:
  \inetpub\wwwroot\
Proper type is refering to Win32, with ADS, without ADS, etc.

# Copy files of directory \clipxnet\webpages\ to directory:
  \inetpub\wwwroot\
# Copy files of directory \clipxnet\dbf\ to directory
  \inetpub\wwwroot\
  Observation:
  Only are included .dbf files with .cdx index file type
# Copy files inter_01.exe, inter_02.exe of proper type to directory:
  \inetpub\wwwroot\
Proper type is refering to Win32, OS/2, Linux. They do not include ADS support
# Copy files htg3xnet.exe, nconvert.exe to directory:
  \inetpub\wwwroot\

"Insertion 20030723"
# Copy file inter_01.hrb to directory:
  \inetpub\wwwroot\

"Insertion 20030723"
# Copy file inter_01.prg to directory:
  \inetpub\wwwroot\
If it is needed, copy harbour.exe file to directory
  \inetpub\wwwroot\

# If you want to use ADS:
Observation: If this listed files are not copied, there will be an runtime error which will not 
be properly reported by Web Server
  + Must be copied clipxnet.exe file from proper ....\CONADS directory
  
  "Insertion 20040227"
  Due to inclusion of MySQL support, there are files with ADS support without and with MySQL
  support, which are in ....\conads and ....\conadsmysql, and if is choosed that with
  MySQL support, instructions for MySQL support must be applied

  + Must be copied additional ADS files:
    Win32: Copy to directories:
      \inetpub\wwwroot\
      the files:
      ACE32.dll      Functions
      AXCWS32.dll    Communications to ADS Remote
      ADSLOC32.dll   ADS Local
      - This files belong to ADS 5.7 version
      - Clipxnet.exe is created with ADS 5.7 libraries
      "Insertion 20040227"
      - Programs with ADS support has been created with ADS 6.2x libraries

  + You can use ADS Local or ADS Remote
  + Is recommended to install ARC: Advantage Data Architect for review / testing of
    database files. I am using the files:
      http://www.advantagedatabase.com 
      "Developer Zone" section,
      Win32: ARC6.11.06.exe,  ARC32.6.20.0.7.exe

"Insertion 20040227"
# If you want to use MySQL:
Observation: If this listed files are not copied, there will be an runtime error which will not 
be properly reported by Web Server
  + Must be copied clipxnet.exe file from ....\conmysql, without ADS support,
  or ....\conadsmysql with ADS support, for which instructions for ADS support must
  be applied
  
  + Must be copied additional MySQL files:
    Win32: Copy to directories:
      \inetpub\wwwroot\
      the files:
      LibMySQL.dll      Functions
      - Clipxnet.exe are created with MySQL 3.23.57 libraries for Win32

  + Can be used MySQL in local way (same computer) or remote way

# Use the Navigator pointing to address:
  http://address/clipxnet.htm
where: address is IP number or name of computer which is using IIS, or 127.0.0.1
  
  This page is shown



17.   Samples, samples and more samples


IMPORTANT:
This is only an raw list of samples in clipxnet.htm
Some of them will not work because they need some other process together described
in clipxnet.htm in Spanish

Link for clipxnet.exe as "interpreter" filter

clipnet.sgs, SisGenScript file 

Multiply.hs, of Felipe Coury 

Hello.hs, of Felipe Coury 

Ugly.hs, of Felipe Coury 

Dir.hs, of Felipe Coury 

prgxnet.hrb, "Harbour Portable Object (.hrb)" file 

prgxnet.prg, "Source file (.prg)" file 


Search of strings in files:
Strings to search, coma separated (example: cadena1, cadena2):
Files specifications, coma separated (example: *.prg, *.fml):


Search "Xitami" in all *.txt 


Files directory:
Files specifications, coma separated (example: *.prg, *.fml):


All files directory 

Browse an DBF database 

Mini-system

Test 01 of Serial Model Interface

   Example 1 of Paralell Model

   Example 2 of Paralell Model

   Example 3 of Paralell Model

   Example 4 of Paralell Model

   Example 5 of Paralell Model

   Example 6 of Paralell Model

   Examples of TGraph 3 Model
 
   Examples of TGraph 3 Model in continuous refreshing

   Example 6 of Paralell Model with TGraph 3

   Test 01 of Serial Model Interface

   Example with "Harbour Portable Object (.hrb)"

   Example with "Source files (.prg)"

Cookies test

Scholar Library

Computers shop

Browse and Edit an DBF database

Specific conditions pre-defined

Browse and Edit DBF or MySQL databases

Copy of data DBF and/or MySQL types




"Si no preguntas, yo no se que quieres saber y te quedas con la duda"

I.Q. David Arturo Macias Corona
dmacias at mail.udg.mx