OpenEuphoria

Re: [Win32Lib] How add/remove MENU ITEMS "on the fly"?

• Posted by "danielmoyer" <danielmoyer at prodigy.net> Mar 09, 2005
• 493 views

>
> posted by: Mario Steele <eumario at trilake.net>
>
> danielmoyer wrote:
> >
> > a related question:
> > if, (to accomplish removing menu items as a program is running), I
initially
> > create the original menu items "in" a sequence and set handler(s) to
them, &
> > then allow app user to delete menu items from the sequence, & then
destroy
> > those controls, shouldn't I at some point also "destroy" the original
> > handler connection made by "setHandler" for the controls destroyed?  If
so,
> > how?  (I presume then re-link handlers to the "new" controls.)
> >
> > Would it be something like this:
> > setHandler ( SequenceOfAllOfTheControlsToBeDeleted, w32HClick, -1)  ??
> > or,
> > setHandler ( SequenceOfAllOfTheControlsToBeDeleted, w32HClick, {-1,
> > routine_id("myhandler")} )  ??
> >
> > And should I do this before I destroy the controls?
> >
> > Dan Moyer
>
> Actually, when you destroy() the control in question, it will remove all
> handlers for that control automatically.  So you wouldn't have to worry
> about removing them.  However, you will need to re-apply the handlers to
> the control, when you re-make it.  Otherwise, Win32lib will be sitting
> there, twiddling it's thumbs, wondering what you want to do with the
> control when an action happens on it.
>
> Mario Steele

OH, very good to know that destroying a control also destroys the handler
link(s), thanks!  And it didn't hurt to mention the necessity to re-apply
handlers to new controls, does follow logically, I kinda assumed that but I
could'a been wrong.

Dan