https://docs.unity3d.com/560/Documentation/ScriptReference/Handles.CircleHandleCap.html
Unity - Scripting API: Handles.CircleHandleCap
Unity is the ultimate game development platform. Use Unity to build high-quality 3D and 2D games, deploy them across mobile, desktop, VR/AR, consoles or the...
scripting apiunityhandles
https://docs.unity3d.com/es/2019.1/ScriptReference/Handles.CircleHandleCap.html
Handles-CircleHandleCap - Unity Scripting API
Draw a circle handle. Pass this into handle functions.
handlesunityscriptingapi