When is a menu not a menu?

[Rob Cozens]

Hi Graham,

>I found out that
>
>   put exists(menu "myMenu" of grp "Main_Menu" of cd "Main" of stack 
> "Main_Display")
>
>results in 'false', whereas
>
>   put exists(btn "myMenu" of grp "Main_Menu" of cd "Main" of stack 
> "Main_Display")
>
>returns 'true'
>
>In what circumstances does RR allow me to use the term 'menu' as a synonym 
>for button?

Question: What response do you get to 'put exists(menu "My Menu")' when the 
menubar is active?

One thing I can tell you with certainty--references to any menu or menuItem 
will fail in preopenStack handlers.  It appears to me that Rev does not 
recognize any menu until after preopenCard logic has run; so whenever I 
need to change a menuItem during preopenStack logic, I find it is necessary 
to reference the control as a button instead of a menu.

Rob Cozens CCW
Serendipity Software Company

"And I, which was two fooles, do so grow three;
  Who are a little wise, the best fooles bee."

  from "The Triple Foole" by John Donne (1572-1631)