Suppressing a message?

[Doug Lerner]

Thanks for your reply.

But... how do you know which are the messages that are blocked?

For example, the following seems logical too:

1. lock messages (all messages are blocked)

2. delete graphic "a"
    - graphic gets deleted

3. unlock messages
    - messages continue again

4. the "unlock messages" took place essentially instantly after the graphic
was deleted, but before the deleteGraphic message was sent (since it is a
separate message that is sent when the graphic is actually removed from the
stack).

That is guaranteed not to happen ever?

The lock messages locks all the messages *associated with* the deletion of
the graphic, even if there are dozens of revXXXX messages sent out after the
graphic is deleted?

That is what I wanted to clarify.

doug

On 1/30/04 10:48 PM, "Jan Schenkel" <janschenkel at yahoo.com> wrote:

> --- Doug Lerner <doug at webcrossing.com> wrote:
>> But... does the above example block all messages
>> associated with "delete
>> graphic"? Why would it?
>> 
>> doug
>> 
> 
> When you do a 'lock messages' the engine will eat
> _all_ the messages it would have sent, including the
> 'deleteGraphic' message.
> 
> Let's explain this with the following script :
> --
> on mouseUp
> lock messages
> go card 3 of stack "Foo"
> delete graphic "Bar"
> go back
> unlock messages
> end mouseUp
> --
> 
> As soon as you lock the messages, the engine will no
> longer send *any* messages, until you unlock or the
> engine reaches the end of the handler.
> So when you
> go card 3 of stack "Foo"
> the engine won't send 'closeCard' or 'openCard' or
> anything like that.
> And when you
> delete graphic "Bar"
> the graphic will be deleted, but you won't get a
> 'deleteGraphic' message.
> And when you finally
> go back
> again the engine won't send 'closeCard' or 'openCard'
> or anything of the sort.
> 
> In short : it just blocks *all* messages.
> 
> Hope this clarified things a bit,
> 
> Jan Schenkel.
> 
> =====
> "As we grow older, we grow both wiser and more foolish at the same time."  (La
> Rochefoucauld)
> 
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