|  Name       |  Type                |  Defined Value    | 
 |     None    |  Not occurs    |  WSEV_NONE    | 
 |   INITIALIZE       |  When the instance is initilized.   |  WSEV_INITIALIZE    | 
 |   DELETE       |  When the instance is released.   |  WSEV_DELETE    | 
 |   ACTIVATE   |  When the instance is activated.  |  WSEV_ACTIVATE    | 
 |   VALUE-CH     |  When the value is changed.    |  WSEV_VALUE_CH    | 
 |   VISIBLE-CH     |  When the WSNvis property is changed.    |  WSEV_VISIBLE_CH    | 
 |   PARENT-VISIBLE-CH     |  When the visible property of the parent instance is changed.   |  WSEV_PARENT_VISIBLE_CH    | 
 |   EXPOSE       |  When the instance is exposed.   |  WSEV_EXPOSE    | 
 |   RESIZE     |  When the instance is resized.    |  WSEV_RESIZE    | 
 |   MOUSE-IN       |  When the mouse pointer comes into the area    |  WSEV_MOUSE_IN  | 
 |   MOUSE-OUT      |  When the mouse pointer goes out of the area.   |  WSEV_MOUSE_OUT  | 
 |   MOUSE-PRESS     |  When the mouse pointer is pressed.     |  WSEV_MOUSE_PRESS   | 
 |   MOUSE-RELEASE    |  When the mouse pointer is released.   |  WSEV_MOUSE_RELEASE  | 
 |   MOUSE-MOVE     |  When the mouse pointer moves in the area.  |  WSEV_MOUSE_MOVE   | 
 |   KEY-PRESS     |  When the keyboard is pressed.     |  WSEV_KEY_PRESS   | 
 |   KEY-RELEASE  |  When the keyboard is released.  |  WSEV_KEY_RELEASE   |