OpenEuphoria

Re: Combo Box List: no response to R mouse button

• Posted by Dan B Moyer <DANMOYER at PRODIGY.NET> Nov 07, 2000
• 449 views

Al,

Thanks a lot for looking into this problem for me; I think at this time I
like your 2nd workaround best, emulating the list portion of the combo box
so I can right click on it with your original method.

I couldn't see *why* it wasn't working, but it definitely seemed that there
was simply *no* response to right click in the list portion of the combo at
all, looks like you figured out the why.  Hope someone can figure out how to
get R click on combo list to work sometime.  :)

Thanks again!

Dan


----- Original Message -----
From: "Al Getz" <xaxo at AOL.COM>
To: <EUPHORIA at LISTSERV.MUOHIO.EDU>
Sent: Tuesday, November 07, 2000 8:46 AM
Subject: Combo Box List: no response to R mouse button


> Dan,
>
>   Looking at the code you sent me, i have determined the reason
> right click on the list portion of the combo box doesnt work is
> because after the list is opened, windows takes control of the
> mouse and doesnt send any messages to any windows
> (doesnt appear to trap the R button at all).
>
> Because of this:
>   subclassing wont help
>   installing a mouse hook wont help
>
> In addition, ChildWindowFromPoint() didnt return the window either
> (to try to subclass the list window).
>
> Since none of the above appears to work, i would (at least for now)
> recommend finding an alternative method to achieve the same results
> such as: (ordered from easiest to most difficult to implement)
>   1. create a button so that after the list is closed, the event for
>      that button can provide the functionality you are looking for.
>   2. emulate the combo by:
>      creating your own list by trapping CBN_DROPDOWN (as an event)
>      and have it open a standard list box which you can then use
>      LB_ constants as we did before to identify the selected item.
>      CBN_CLOSEUP would then trigger the closing of the list box.
>      This method would have the added benefit of providing all the
>      functionality of a standard list box as well.
>   3. emulate the combo fully, drawing all aspects of the box yourself.
>
> I might look at this more, but i have other things in the workings
> too.
>
> I hope to get some form of a windows based debugger going soon too.
>
> Let me know if you find any other solutions or ideas also, ok?
>
> --Al