Download : libpng-0.71_1.zip
Description : this is a version of PNG library re-compiled for both WIN32 and MFC. You can find the source code and the compiled library inside.
Recall that it needs the WIN32 compiled ZLIB library to work.
You can download the full documentation too.


Download : zlib-0.93.zip
Description : this a version of the ZLIB library re-compiled for both WIN32 and MFC. You can find the source code and the compiled library inside.


Download : palette_builder.zip
Description : it builds and handles resizeable palettes.
It features : a number of predefined palettes, extracting color informations from .MAP, .BMP, .GIF files,colors space transformation ( HSV , CMY , XYZ , ITU , YUV ... ) , palette color manipulation , color cycling. Easy to be embedded.


Download : complex.zip
Description : a data type handling complex numbers :
all operators, all direct and inverse, trigonometric, hyperbolics, exponential and power functions. Now implementing forward and inverse stereographic projection onto the Riemann sphere, related measure computation and additional features.


Download : geometricalAssistant.zip
Description : it performs 3D rotation, perspective and axonometries, stereographic ( using tangent line ) and sphere ( using secant line ) projections of a plane onto a sphere of equation x2+y2+z2 = 1.


Download : Mobius.zip
Description : A C++ class handling M?bius (linear fractional / homographic) transformations.
Download : quaternion.zip
Description : a data type handling quaternion numbers (based onto the code of Andrew Burbanks and expanded by me): all basic operators, direct and inverse trigonometric, hyperbolic and exponential functions.


Download : CoordsRemapper.zip
Description : it maps window coordinates into a rectangle region whose limits are defined by user.


Download : RayTracer.zip
Description : Lambertian and Phong illumination models are easy now.
It supports special illumination for quaternion Julia Sets.
Don't lose it if you are a fractal coder.


Download : photoclick.zip
Description : freeze screenshots from a choosen window.


Download : registryhandler.zip
Description : Use this class for managing easily the Windows Registry.


Download : imageallocator.zip
Description : It's easy now to build an 32 bits aligned image buffer.
Only for indexed, RGB, CMYK images.


Download : sinus_progress_ctrl.zip
Description : A MFC progress control displaying two trigonometric functions instead the usual rectangles.


Download : prompt_edit.zip , VC++ project
Description : A MFC progress edit box prompting the user to insert command. This component is spread with a Visual C++ project (as example) or in stand-alone files to be implemented.

Download w-sudoku-mini.zip (click here) and then uncompress the file in your hard disk.

Real life earthquakes may induce sheer terror, but browser ones are a whole different story. Using DHTML, we've created an earthquake script that shakes the browser, simulating a quake effect. Use it to grab your visitor's attention, if nothing else. Here are some highlights of this amusing script:

The chance that an earthquake will occur is configurable; 100% means every time a visitor enters the page, while 50%, only half of the time.
The magnitude of the quake differs randomly during each shake. You could experience an unnoticeable 1-in-rector-scale nudge, or a 10-in-rector monster!
Right after the shake, a dynamic message will appear on screen for a few seconds informing the visitor what just happened.
The quake script is cross-browser functional- there's no escaping!

Like to take online quizzes? Here we have created a very simple and yet powerful quiz program, available for you to download and set up on your own computer or website. You can have as many quizzes as you want, and as many questions as you want for each quiz. All we ask is that you leave a notice of our authorship at the bottom of the page.

The code below creates an animated sprite. Use the test cases to control it.