| 2025.04.14 |
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New application |
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New application available: Physics: Damped motion of a vertical spring (simplified equation).
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| 2025.04.07 |
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Programming tip |
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New programming tip available: Working with complex numbers in Free Pascal. The article
describes the unit uComplex, as well as custom functions to convert a complex number into a string and vice-versa.
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Application update |
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Update of several complex numbers related programs and applications: Improvement of the display (pretty-printing) of a complex number.
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| 2025.04.02 |
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Programming tip |
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New programming tip available: Date and time handling in Free Pascal (Part II). This part
of the tutorial deals with file dates and times.
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| 2025.03.06 |
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Programming tip |
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New programming tip available: Date and time handling in Free Pascal (Part I).
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| 2025.02.22 |
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New application |
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New application available: Nomenclature of ionic compounds exercise generator.
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| 2025.02.18 |
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Programming tip |
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New Free Pascal programming tip available: Playing a WAV file using the Windows API.
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| 2025.02.16 |
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Application update |
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Update of my Poker game for 1 player application. Added option to play using 1 or 2 card decks.
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| 2025.02.08 |
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Programming tip |
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New programming tip available: Creating PDF documents using fcl-pdf. The tutorial includes
information and examples about using a custom paper format, drawing lines and shapes, writing text, determining a text's width and height to put it at a precise
position on the page and drawing a border around it, drawing images.
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| 2025.01.09 |
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New application |
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New application available: Basic arithmetic operations hexadecimal numbers calculator.
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| 2025.01.02 |
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Tutorial update |
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Continuation with my tutorial about the installation of Lazarus on Linux. In the document about Installing
Lazarus/Free Pascal on Debian based systems, added the information for SysLinuxOS and wattOS.
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| 2024.12.22 |
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Programming tip |
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New programming tip available: Determination of the width and height of an image from file.
The tutorial includes examples about reading the image size using FCL-Image, about using the "picslib" unit, and for PNG files, about directly reading the values
from the binary file.
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| 2024.12.18 |
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Application update |
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Update of my Function Plotter application. Added "two graphs plot" functionality.
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| 2024.12.16 |
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Data update |
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Data update available for my game application Memory. Added a second image series to the "birds" and "fishes"
picture sets.
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| 2024.12.11 |
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Programming tip |
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New programming tip available: Working with regular expressions in Free Pascal.
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| 2024.12.02 |
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New application |
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New application available: Memory game Christmas edition - a special release of my classic Memory application.
The download archive contains 5 Christmas related picture sets: Nativity I, Nativity II, Santa Claus, Christmas trees, and Christmas bells.
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| 2024.12.01 |
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Programming tip |
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New programming tip available: Implementing mouse support in a Free Pascal DOS program.
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| 2024.11.18 |
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Data update |
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Data update available for my game application Kidspuzzle. As XMas is approaching, added four related puzzle
pictures: Christmas on the Farm (15p), Christmas in the Forest (36p), Christmas at Disney's (80p), Santa Is Coming (120p).
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| 2024.10.22 |
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New application |
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New application available: Mathematics puzzle: The number pyramid.
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| 2024.10.18 |
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New application |
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New application available: Latin grammar: Usage of the grammatical cases with prepositions.
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| 2024.10.05 |
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Programming tip |
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New Lazarus/Free Pascal programming tip available: Using a function as a parameter in another function.
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| 2024.09.23 |
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New application |
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New application available: Catholic holidays: Determination of the date of Easter and other catholic holidays.
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| 2024.08.29 |
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New application |
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New application available: Biochemistry: Amino acids quiz.
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| 2024.08.19 |
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Application update |
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Minor issue fix in my application Biorhythm cycles.
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| 2024.08.10 |
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New application |
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New application available: Drawing of mathematical and other functions using Gnuplot.
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| 2024.08.07 |
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Programming tip |
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New tutorial available: Free Pascal console programming: Running external programs (all that you need to
know about "Exec", "DosError", "DosExitCode").
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| 2024.07.30 |
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Data update |
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Update available for my game application Kidspuzzle. Three new puzzle pictures added, all of them for the
"little ones": Ocean (12 pieces), Penguins (16 pieces), and Elves (24 pieces).
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| 2024.07.06 |
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New application |
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New application available: Solo Poker: Poker game for 1 player.
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| 2024.06.18 |
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New application |
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After a long time, a new application available: Lazarus/Free Pascal Curlicue fractal.
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| 2024.06.07 |
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New tutorial |
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New tutorial available: Building and using Free Pascal dynamic link libraries. The tutorial shows how to
create a DLL, and how to call its procedures from Pascal, C and C++ programs.
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| 2024.06.02 |
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Tutorial update |
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Continuation with my tutorial about the installation of Lazarus on Linux. In the document about Installing
Lazarus/Free Pascal on Debian based systems, added the information for the following three 32-bit Linux distributions: Bodhi Linux, Bunsenlabs Linux (failure),
and Emmabuntüs.
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| 2024.05.16 |
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New program |
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New command line program (Linux terminal program) available: Interactively change Linux file permissions.
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| 2024.05.03 |
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Programming tip |
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New programming tip available: Working with DBF (dBASE) files.
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| 2024.04.26 |
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New tutorial |
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New tutorial available: Pointers - A beginners to intermediate overview. Including 15
elementary sample programs (available as ZIP download).
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| 2024.03.20 |
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Tutorial update |
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Continuation with my tutorial about the installation of Lazarus on Linux. Rewritten Installing
Lazarus/Free Pascal on Arch Linux based systems with now the details for ArcoLinux, Mabox Linux, Manjaro, and Open Mandriva (system failure for this latter
on).
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| 2024.03.14 |
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Application update |
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With the approach of Easter, data update available for my game applications Kidspuzzle (Easter bunny and Flying
Easter eggs puzzles) and Memory (Easter bunnies and Easter eggs picture sets).
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| 2024.03.12 |
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New tutorial |
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New tutorial available: Using 32-bit and 64-bit inline assembly with Free Pascal.
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| 2024.03.06 |
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New programming tip |
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New programming tip available: Variable number of arguments in Free Pascal functions/procedures.
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| 2024.02.07 |
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New programming tip |
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New programming tip available: Free Pascal functions with multiple return-values.
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| 2024.01.23 |
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New application |
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New mathematics application available: Eigenvalues and eigenvectors of a 2x2 matrix.
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| 2024.01.20 |
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New tutorial |
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New tutorial available: Using SQLite databases with Lazarus/Free Pascal. It describes how to connect to a
SQLite database from a Lazarus application using TSQLite3Connection, or as an alternative, using
TODBCConnection.
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| 2024.01.14 |
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New tutorial |
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New tutorial available: Special data types: Variants, variant records, and variant arrays.
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| 2024.01.12 |
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New program |
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New console program available: Compare the content of two (Windows) directories.
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