Month

Brief Information about the February 2007 CSIG Meeting

General Review of .NET Programs Covered Recently

3rd Tuesday of the month. 7:30PM - C/C++ Group, SPRS

Welcome to the CSIG, a Special Interest Group of the ACGNJ. This group is a "Special Interest Group" of the ACGNJ devoted to discussing programming languages in general and C, C++, and C++ for Windows programming in particular. Each month a small but hopefully useful program (complete with source code) is presented for discussion.

This month we will be reviewing the .NET programs that were discussed over the last 6 months using the latest Microsoft compilers. The programs may be compiled using the C++ .Net compiler included with Visual Studio 2005 as well as the free (!!!) C++ Express compiler. Additionally, since C++ has many similarities with C# or C-Sharp, these compilers may also be used with modifications to the source files. Microsoft provides a C-Sharp compiler with Visual Studio 2005 as well as the free (!!!) C-Sharp Express compiler. Be sure to bring questions about the code and the language.

Microsoft .NET Framework Version 2.0

This is a large package, about 24 Megs. Most people running updated versions of WinXP will already have it on their computer. If not, it may be downloaded from Microsoft.

There are a number of ways to refer to this compiler and code.

• Microsoft .Net Framework 2.0
• C++ 7.0
• .Net 2.0
• CLI
• Common Language Infrastructure
• Managed

Here's what Wikipedia says about CLI:

At the meeting on Tuesday night we will be discussing these items and more.

Sample Code - VC7

Sample Code
===========
// Paint the screen.   Paint the screen.   Paint the screen.
    private: System::Void Form1_OnPaint(System::Object^  sender, System::Windows::Forms::PaintEventArgs^  e)
        {
            int topBalloon = -1;
            Rectangle windowRect = ClientRectangle;

            if (firstime)
            {
                Form1_InitBalloonArray(windowRect);
                firstime = false;
            }
            Graphics ^g = e->Graphics;

            for (int i = 0; i < MAXBALLOONS; i++)
            {
                if (pBaloonCenter[i]->X < 0) continue;

                SolidBrush^ balloonBrush = gcnew SolidBrush(*pBaloonColor[i]);
                g->FillEllipse(balloonBrush,
                    (*pBaloonCenter[i]).X - *pBalloonRadius[i],
                    (*pBaloonCenter[i]).Y - *pBalloonRadius[i],
                    2 * (*pBalloonRadius[i]),
                    2 * (*pBalloonRadius[i]));
                g->DrawEllipse(Pens::Black,
                    (*pBaloonCenter[i]).X - *pBalloonRadius[i],
                    (*pBaloonCenter[i]).Y - *pBalloonRadius[i],
                    2 * (*pBalloonRadius[i]),
                    2 * (*pBalloonRadius[i]));
                // ~balloonBrush();  or balloonBrush->Dispose();
                topBalloon = i;
            }

            if (-1 != topBalloon)       // Put a X in the center of the top balloon.
            {
                Pen ^ myBlackPen = gcnew Pen(Color::Black, 10);
                myBlackPen->StartCap = System::Drawing::Drawing2D::LineCap::Round;
                myBlackPen->EndCap = System::Drawing::Drawing2D::LineCap::Round;

                Pen ^ myWhitePen = gcnew Pen(Color::White, 5);
                myWhitePen->StartCap = System::Drawing::Drawing2D::LineCap::Round;
                myWhitePen->EndCap = System::Drawing::Drawing2D::LineCap::Round;

                g->DrawLine(myBlackPen,
                    (*pBaloonCenter[topBalloon]).X - 10, (*pBaloonCenter[topBalloon]).Y - 10,
                    (*pBaloonCenter[topBalloon]).X + 10, (*pBaloonCenter[topBalloon]).Y + 10);
                g->DrawLine(myBlackPen,
                    (*pBaloonCenter[topBalloon]).X - 10, (*pBaloonCenter[topBalloon]).Y + 10,
                    (*pBaloonCenter[topBalloon]).X + 10, (*pBaloonCenter[topBalloon]).Y - 10);
                g->DrawLine(myWhitePen,
                    (*pBaloonCenter[topBalloon]).X - 10, (*pBaloonCenter[topBalloon]).Y - 10,
                    (*pBaloonCenter[topBalloon]).X + 10, (*pBaloonCenter[topBalloon]).Y + 10);
                g->DrawLine(myWhitePen,
                    (*pBaloonCenter[topBalloon]).X - 10, (*pBaloonCenter[topBalloon]).Y + 10,
                    (*pBaloonCenter[topBalloon]).X + 10, (*pBaloonCenter[topBalloon]).Y - 10);
                //myBlackPen->Dispose();
                //myWhitePen->Dispose();
            }
        }

SOURCE CODE

Source Code Files