MenuEvent SUB

 Action
 Monitors user input to determine if a menu item is being chosen, with either
 the mouse or the keyboard.


 Syntax
 MenuEvent

 Remarks
 If MenuEvent detects either a pressed Alt key or a mouse button press while
 the mouse cursor is on the top row, program control is transferred to
 MenuDo. MenuDo retains program control until an item is selected or the user
 aborts the menu process either by releasing the mouse button somewhere other
 than the top row or by pressing the Esc key. Once an item is selected, use
 MenuCheck to evaluate the selection.

 MenuEvent is used by the MenuInkey$ procedure to determine when a user has
 pressed the Alt key in conjunction with a keyboard selection or has selected
 a menu by moving the mouse cursor to the top row and pressing the left mouse
 button.


 See Also.  MenuInkey$, ShortCutKeyEvent