Tag: delphi

Extending TObject with data at runtime

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In a recent comment on this blog Patrick van Logchem suggested a way of extending an existing object instance with custom data at run-time (originally the idea of Thorsten Engler). The main idea is to be able to…

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Enumerating over a directory structure

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Me again, and again with enumeration techniques. In this post I will try to coven a very common problem all programmers have to face one time or another: enumerating all files recursively in a directory. Yesterday I had…

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Arbitrary precision integers

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I have decided to extract the BigInteger and BigCardinal data types from DeHL and make a bundle with them separately. Someone may be interested in these types and not so much in DeHL. The attached unit should compile…

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Playing with Windows 7

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I was playing around with some (default Windows) programs these days and noticed that taskbar items for those programs show some cool effects whenever there is some progress going on So I decided to write a little unit…

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DeHL documentation

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Since I had a few requests, I have started putting together some documentation on DeHL. It’s pretty basic and only includes some conceptual stuff, not API documentation. You can find it here. Version 0.5 is shaping up quite…

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What’s new in DeHL 0.4

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In the previous post I have mostly talked about Enex (Enumerable Extensions) I have enabled for all DeHL’s collection classes. Now I will list the other changes that got into this release that may be of interest to…

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DeHL 0.4: Linq-ifying Delphi

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Since I have started working on DeHL, one of the main purposes was to get to the point where I could use Linq-like extensions on collection classes. Of course I could not call the new functionality Linq since…

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More about enumerables

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In the last post I have described how enumeration works in Delphi. Now I will try to expand the subject a bit and make a more general description of what enumerability actually means and how it can solve…

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Enumerables in Delphi

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It is not a surprise that most programming languages in our time have the built-in support for enumerators/iterators. This is a mandatory feature since enumerators and enumerable collections simplify the development of applications and make the code cleaner….

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DeHL 0.3 is out

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I’m proud to announce the 0.3 version of DeHL library. This release focused on bug-fixes and extensions to type support engine. This version should pretty much stabilize what I started and should leave me more time to extend…

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