Types of UnityGUI input and processing events.
| MouseDown | Mouse button was pressed. |
|---|---|
| MouseUp | Mouse button was released. |
| MouseMove | Mouse was moved (editor views only). |
| MouseDrag | Mouse was dragged. |
| KeyDown | A keyboard key was pressed. |
| KeyUp | A keyboard key was released. |
| ScrollWheel | The scroll wheel was moved. |
| Repaint | A repaint event. One is sent every frame. |
| Layout | A layout event. |
| DragUpdated | Editor only: drag & drop operation updated. |
| DragPerform | Editor only: drag & drop operation performed. |
| DragExited | Editor only: drag & drop operation exited. |
| Ignore | Event should be ignored. |
| Used | Already processed event. |
| ValidateCommand | Validates a special command (e.g. copy & paste). |
| ExecuteCommand | Execute a special command (eg. copy & paste). |
| ContextClick | User has right-clicked (or control-clicked on the mac). |