controlID | The control ID for the handle. |
position | The position of the handle in the space of Handles.matrix. |
rotation | The rotation of the handle in the space of Handles.matrix. |
size | The size of the handle in world-space units. |
eventType | Event type for the handle to act upon. By design it handles EventType.Layout and EventType.Repaint events. |
The function to use for drawing the handle e.g. Handles.RectangleCap.
Custom CapFunction has two responsibilities: