VS2005 development environment, GDI+ drawing: straight line, rectangular, and have regressive function

draw\draw\bin\Debug\draw.exe
....\....\...\.....\draw.pdb
....\....\...\.....\draw.vshost.exe
....\....\draw.csproj
....\....\Form1.cs
....\....\Form1.Designer.cs
....\....\Form1.resx
....\....\obj\Debug\draw.csproj.GenerateResource.Cache
....\....\...\.....\draw.exe
....\....\...\.....\draw.Form1.resources
....\....\...\.....\draw.pdb
....\....\...\.....\draw.Properties.Resources.resources
....\....\...\draw.csproj.FileList.txt
....\....\Program.cs
....\....\...perties\AssemblyInfo.cs
....\....\..........\Resources.Designer.cs
....\....\..........\Resources.resx
....\....\..........\Settings.Designer.cs
....\....\..........\Settings.settings
....\....\shape.cs
....\draw.sln
....\draw.suo
....\....\obj\Debug\Refactor
....\....\...\.....\TempPE
....\....\bin\Debug
....\....\obj\Debug
....\....\bin
....\....\obj
....\....\Properties
....\draw
draw

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