| x | The x-coordinate (in client coordinates) of the position where the mouse moved. |
| y | The y-coordinate (in client coordinates) of the position where the mouse moved. |
| shift | The state of the shift keys and mouse buttons that were pressed simultaneously when the mouse moved.
It is a combination of the following values using bitwise OR. ssAlt : ALT key was pressed ssShift : SHIFT key was pressed ssCtrl : CTRL key was pressed ssLeft : Left mouse button was pressed ssMiddle : Middle mouse button was pressed ssRight : Right mouse button was pressed |