Linux can't disable menuItems?

[Bill Vlahos]

Thanks Richard.

It sounds like converting to "button" will be a safe thing to do for  
me. Too bad. I like the syntax menu.

Bill

On Mar 22, 2009, at 9:45 AM, Richard Gaskin wrote:

> 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
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