Magic Square with Visual Studio 2008 C++ Windows Forms

I built the program that shows Magic Square of Melencolia I - engraving by the German Renaissance master Albrecht Dürer.

Solution Explorer looked as follow:

This is a main window that the program creates:

This is a Description window:

This is a Melencolia window:

This is a Magic Square window:

This is a Sum Calculation window:

Quadratic Function with Visual Studio 2008 C++ Windows Forms

I built program that calculate quadratic function. You enter 3 parameters of the quadratic function: a, b, c. And the program calculate results: discriminant, roots, vertex, intersection with y-axes and draw a graph of the function.
This is a window that the program create:

Solution Explorer looked as follow:

Code of Form1.h