https://docs.unity3d.com/es/2018.4/ScriptReference/EventSystems.IDragHandler.html
EventSystems.IDragHandler - Unity Scripting API
Interface to implement if you wish to receive OnDrag callbacks.
unityscriptingapi
https://docs.unity3d.com/es/2019.1/ScriptReference/EventSystems.IDragHandler.OnDrag.html
EventSystems.IDragHandler-OnDrag - Unity Scripting API
When draging is occuring this will be called every time the cursor is moved.
unityscriptingapi
https://docs.unity3d.com/es/2017.1/ScriptReference/EventSystems.IDragHandler.html
EventSystems.IDragHandler - Unity Scripting API
Interface to implement if you wish to receive OnDrag callbacks.
unityscriptingapi