Linux can't disable menuItems?

[Richard Gaskin]

Bill Vlahos wrote:
> Does anyone know if there are any consequences in using the "button"  
> syntax instead of "menu"? Menu works fine on Mac and Windows so I  
> don't want to break any of my existing code.

I tend to prefer using "button" over "menu", because it's more specific:

The option to use "menu" was added mostly for HC compatibility, and will 
affect whatever is the current menu bar.  In HC of course there's only 
one menu bar and it's not associated with any physical object in your 
stack, so it works well enough to refer to 'menu "File"' and you always 
know you'll be dealing with just one thing.

But in Rev, menus are groups of menu buttons on a card, and the current 
menu can be one of two things:  when a stack has its own menubar group 
defined it refers to a button in that group, but when a stack has no 
menubar of its own it refers to a button in whatever group is currently 
defined as "the default menubar".

In some cases the flexibility of using "menu" this way can be useful. 
You can write a single handler to modify menu contents regardless of 
whether its part of the stack that currently has focus or the default 
menubar.

But in other cases it can be troublesome, possibly altering IDE menus 
when you wanted to modify one of your own.

For this reason I tend to use "button" to refer to menus, requiring me 
to specify the button by its owner and therefore ensuring that I know 
exactly which object is being affected.

--
  Richard Gaskin
  Fourth World
  Revolution training and consulting: http://www.fourthworld.com
  Webzine for Rev developers: http://www.revjournal.com