| bubbles | Returns whether this event type bubbles up in the event propagation path. |
| capturable | Return whether this event is sent down the event propagation path during the capture phase. |
| currentTarget | The current target of the event. The current target is the element in the propagation path for which event handlers are currently being executed. |
| dispatch | Return whether the event is currently being dispatched to visual element. An event can not be redispatched while being dispatched. If you need to recursively redispatch an event, you should use a copy. |
| imguiEvent | The IMGUIEvent at the source of this event. This can be null as not all events are generated by IMGUI. |
| isDefaultPrevented | Return true if the default actions should not be executed for this event. |
| isImmediatePropagationStopped | Return true if StopImmediatePropagation() has been called for this event. |
| isPropagationStopped | Return true if StopPropagation() has been called for this event. |
| propagationPhase | The current propagation phase. |
| target | The target for this event. The is the visual element that received the event. Unlike currentTarget, target does not change when the event is sent to elements along the propagation path. |
| timestamp | The time at which the event was created. |
| altKey | Return true if the Alt key is pressed. |
| button | Integer representing the pressed mouse button: 0 is left, 1 is right, 2 is center. |
| clickCount | Number of clicks. |
| commandKey | Return true if the Windows/Command key is pressed. |
| ctrlKey | Return true if the Control key is pressed. |
| currentTarget | The current target of the event. The current target is the element in the propagation path for which event handlers are currently being executed. |
| localMousePosition | The mouse position in the current target coordinate system. |
| modifiers | Flag set holding the pressed modifier keys (Alt, Control, Shift, Windows/Command). |
| mouseDelta | Mouse position difference between the last mouse event and this one. |
| mousePosition | The mouse position in the screen coordinate system. |
| shiftKey | Return true if the Shift key is pressed. |