OpenEuphoria

Re: Popup menu

• Posted by Pete Stoner <stoner.pete at gmail.com> Mar 20, 2007
• 545 views

CChris wrote:
> 
> Pete Stoner wrote:
> > 
> > CChris wrote:
> > > 
> > > Pete Stoner wrote:
> > > > 
> > > > Hi Guys, 
> > > > I have a win32lib prog with a hidden window that opens a popup menu at
> > > > the
> cursor</font></i>
> > > > position, there's one last thing I am trying to get working... 
> > > > 
> > > > Is there a notification I can act on when the menu disappears? i.e. the
> > > > user
> > > > opens the popup menu then clicks elsewhere on the screen without
> > > > selecting
> any</font></i>
> > > > menu item so the menu just 'goes away' and I want to be able to trigger
> > > > a
> routine</font></i>
> > > > when this happens, but I haven't been able to find an event notification
> > > > for
> > > > it.
> > > > 
> > > > Regards PeteS
> > > 
> > > This works in my modified version, by firing w32HCloseUp on the menu. So
> > > far,
> > > I had no signal from Derek on whether he plans to absorb this, and a few 
> > > other, change into the official lib.
> > > 
> > > A quick fix would be to set a raw message handler for your hidden window
> > >  listening for the WM_EXITMENULOOP message. As I understand it, your 
> > > window only has one menu, so this could be the way to go. This trick won't
> > >
> > > tell you if submenus of your popup menu were closed, only the menu itself.
> > > 
> > > CChris
> > 
> > Thanks Chris, this works
> > }}}
<eucode>
> > function PopupClose(integer pSource, atom hWnd, atom iMsg, atom wParam, 
> > atom lParam)
> >          ? 1
> >          return {0}
> >   end function
> >   setWinMsgHandler( MainWin, WM_EXITMENULOOP, routine_id("PopupClose"))
> > </eucode>
{{{

> > 
> > It triggers fine when the menu closes, but I just realised the routine I
> > want
> > to run when the menu closes will break the routines that run when an item is
> > clicked (its a 'cleanup' routine which *must* run after any menu item
> > routines
> > have finished). I've tried setting a flag on the menuitem click event and
> > checking
> > that flag in the exitmenuloop routine but it looks like the exitmenuloop is
> > triggered before the click so the flag doesn't work..
> > 
> > What I need is to be able to run the cleanup either if the user clicks
> > elsewhere
> > without selecting a menu item or *after* any menu click routines have
> > finished.
> > 
> > Any ideas?
> > 
> > Regards PeteS
> 
> I didn't test this, but you'd need then to trap the WM_MENUSELECT message as
>  well, or more precisely to monitor this message in a w32HAfterEvent handler
>  for the hidden window.
> 
> If the high word of wParam is #FFFF and lParam is 0, the system closed the 
> menu. See if this condition occurs after the w32HClicks were processed.
> Don't set the return value, 0 (the default) is just fine.
> Un general, wParam holds the id of the clicked item, if any.
> 
> If this works, try monitoring WM_EXITMENULOOP instead in the w32HAfterEvent,
>  because the check will be simpler. I have no idea whether there's any
>  guarantee of the messages being sent in the same sequence according to
>  the various Windows versions.
> 
> HTH
> CCChris

Chris, I've tried a few variations and it always seems to post the close before
the click, I can't see anyway I can do what I want. I even tried the CloseUp
event in your modified w32lib and that also posts the events with the close
first..
Unless someone can suggest anything?

PeteS