A very good crystal dial control and its source code, is a good example to learn GDI graphics

AquaGauge\AquaGauge.cs
.........\AquaGauge.csproj
.........\AquaGauge.Designer.cs
.........\AquaGauge.dll
.........\AquaGauge.resx
.........\AquaGauge.suo
.........\Backup\AquaGauge.cs
.........\......\AquaGauge.csproj
.........\......\AquaGauge.Designer.cs
.........\......\AquaGauge.resx
.........\......\AquaGauge.suo
.........\......\Properties\AssemblyInfo.cs
.........\bin\Debug\AquaGauge.dll
.........\...\.....\AquaGauge.pdb
.........\obj\Debug\AquaControls.AquaGauge.resources
.........\...\.....\AquaGauge.csproj.FileListAbsolute.txt
.........\...\.....\AquaGauge.csproj.GenerateResource.Cache
.........\...\.....\AquaGauge.dll
.........\...\.....\AquaGauge.pdb
.........\Properties\AssemblyInfo.cs
.........\UpgradeLog.XML
.........\_UpgradeReport_Files\UpgradeReport.css
.........\....................\UpgradeReport.xslt
.........\....................\UpgradeReport_Minus.gif
.........\....................\UpgradeReport_Plus.gif
.........\Backup\obj\Debug\TempPE
.........\......\bin\Debug
.........\......\obj\Debug
.........\obj\Debug\TempPE
.........\Backup\bin
.........\......\obj
.........\......\Properties
.........\bin\Debug
.........\obj\Debug
.........\Backup
.........\bin
.........\obj
.........\Properties
.........\_UpgradeReport_Files
AquaGauge

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