from other areas have over graphics tools for your reference. Can be achieved pie display.

Packet : 53607910pi_src.zip filelist
PI/PI/
PI/PI.sln
PI/PI.suo
PI/PI/AssemblyInfo.cs
PI/PI/PI.csproj
PI/PI/PI.csproj.user
PI/PI/PopupInfo.cs
PI/PI/PopupInfo.resx
PI/PI/PopupMessageHandler.cs
PI/PI/PopupMessageHandler.resx
PI/PI_Installer/
PI/PI_Installer/PI_Installer.vdproj
PI/Test/
PI/Test/App.ico
PI/Test/AssemblyInfo.cs
PI/Test/PITest.cs
PI/Test/PITest.resx
PI/Test/Test.csproj
PI/Test/Test.csproj.user

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