| bubbles | Returns whether this event type bubbles up in the event propagation path during the BubbleUp phase. | 
        | dispatch | Indicates whether the event is being dispatched to a visual element. An event cannot be redispatched while it being dispatched. If you need to recursively dispatch an event, it is recommended that you use a copy of the event. | 
        | imguiEvent | The IMGUIEvent at the source of this event. The source can be null since not all events are generated by IMGUI. | 
        | isImmediatePropagationStopped | Indicates whether StopImmediatePropagation was called for this event. | 
        | isPropagationStopped | Returns true if StopPropagation or StopImmediatePropagation
 was called for this event. | 
        | originalMousePosition | The original mouse position of the IMGUI event, before it is transformed to the current target local coordinates. | 
        | pooled | Whether the event is allocated from a pool of events. | 
        | propagationPhase | The current propagation phase for this event. | 
        | target | The target visual element that received this event. Unlike currentTarget, this target does not change when
 the event is sent to other elements along the propagation path. | 
        | timestamp | The time when the event was created, in milliseconds. | 
        | tricklesDown | Returns whether this event is sent down the event propagation path during the TrickleDown phase. | 
        | eventTypeId | See EventBase.eventTypeId. | 
        | actionKey | Returns true if the platform-specific action key is pressed. | 
        | altKey | Returns true if the Alt key is pressed. | 
        | button | A value that indicates which mouse button was pressed or released (if any) to cause this event:
 0 is the left button, 1 is the right button, 2 is the middle button.
 A negative value indicates that no mouse button changed state during this event. | 
        | clickCount | The number of times a button is pressed consecutively. | 
        | commandKey | Returns true if the Windows/Cmd key is pressed. | 
        | ctrlKey | Returns true if the Ctrl 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 | Flags that hold pressed modifier keys (Alt, Ctrl, Shift, Windows/Cmd). | 
        | mouseDelta | Gets the difference between the mouse's position during the previous mouse event and its position during the
 current mouse event. | 
        | mousePosition | The mouse position in the panel coordinate system. | 
        | pressedButtons | A bitmask that describes the currently pressed buttons. | 
        | shiftKey | Returns true if the Shift key is pressed. |