Re: [wxhaskell-users] TreeCtrl Drag and Drop

[Daan L. <daa...@xs...>]

> Hmm, doesn't crash on me.  But I went ahead and added the images, but
> nothing changed.  Note that I said try with and without the "veto",
> because I'm not sure it should really even be "veto".  In the C++
> version, you have to explicitly allow the dragging, because the default
> is not to drag, as evidenced in the wxWidgets sample program:

No, it should be "allow", as signified by the documentation of
TreeCtrl events :-)

I tried it and it works on my machine -- ie. I have:

  onTreeEvent t event
    = case event of
       TreeBeginDrag item point allow
         -> putStrLn "dragging..."
       other
         -> propagateEvent

Note that I removed the propagateEvent in the first case, as I
have handled it now.

I have a windows-XP system with wxWidgets 2.4.2 and ghc 6.2.1.
If you tell me your system, I can maybe test it better on Monday,
perhaps there is an OS dependency somewhere.
(I have a MacOSX panther and Fedora core1 machine available).

I hope this helps,
-- Daan.