Why no native WinRT support in Delphi XE3?
Allen Bauer spilled the beans in reply to a question by Brandon Staggs, and speaks about “Window’s 8 dirty little secret”.
I’ve quoted his reply in full below (highlights are mine):
DWScript August 2012 news
Here are the recent changes for DWScript from the SVN side.
As things settle down, next version should hit RC status by the end of the month.
Fiddling with L-System (part 2)
Part 1 left us with a large cryptic looking string (a recursively applied grammar applied to an axiom, for the purists).
In part 2 we’ll go from that big string to a visual representation, by making use of that string as a set of commands for a turtle language.
Turtle graphics came to fame in the days of Darwin’s voyage to the Galapagos the Logo programming language, and in many ways are the grand-daddy of vector graphics languages like SVG.
For more details, read the turtle graphics article in wikipedia, it’s (at the moment) short and to the point.
Fiddling with L-System (part 1)
The class of grammar-based fractals known as Lindenmayer system allows generating an interesting variety of geometrical and botanical visuals.
To the right is a representation of a “Fractal Plant”, which is generated from just two simple (if cryptic-looking) rules applied recursively.
In simple terms, L-System starts from a string (called an axiom), to which rules are applied recursively. Rules are a set of substitution strings for characters in the original string.
Defeat “Print Screen” with Visual Cryptography
Time for some summer fun! Someone asked in the delphi win32 newsgroup how to prevent users from doing a “Print Screen”. The answer to that is that you can’t really, since screen capture can be invoked from other applications, or your app can be hosted in a Virtual Machine, accessed over RDP, or a frame can be grabbed directly from the screen cable.
However all hope is not lost! Even if you can’t defeat a “Print Screen” or screen capture, it’s possible to make such a capture useless.