| Value | Meaning |
|---|---|
| Cancel | button down handling is cancelled |
| ButtonDown | button is down |
| ButtonUp | button is up |
| Move | mouse pointer is moving |
| FocusIn | pointer is back inside widget while button is down after FocusOut |
| FocusOut | pointer moved outside of widget while button was down (if handler returns true, Move events will be sent even while pointer is outside widget) |
| Wheel | scroll wheel movement |
| Leave | pointer left widget which has before processed Move message, while button was not down |
Mouse action codes for MouseEvent