On Tue, 09 Apr 2013 21:54:15 +0200, Luc TAESCH <luc.tae...@gmail.com>
wrote:
>
> WxHaskell and DragAndDrop
>
> I would like to know how to use the following events handlers :
> dropTargetOnData, dropTargetOnDrop, dropTargetOnEnter,
> dropTargetOnDragOver….[1]
>
>
> Could you check if my current believes are corrects :
>
> From wx Widgets/ wxPython [2] / [3] / [4] it looks like they need to be
> used to manage DragAndDrog for non trivial examples.
> they are not actionable via an existing event like "on drag", etc..
> I tried and create my own event. but it does not get "activated". [7]
> besides, from the signatures [1], these look like being activated on
> DropTarget, unlike other events on Reactive/ Windows/Controls . Is It
> Correct ?
>
> Heinrich created its own events "onText", (in reactive-Banana) but this
> is on a Control. [6]
>
>
>
> Could someone confirm these events effectively worked for them in
> WxHaskell, and maybe hint how to do that
>
I have tried you attached program and it gave the following tracing:
>Drag.exe
showMeDropDnD handler called: DragMove
on Drag activated:
on Enter:Point {pointX = 24, pointY = 6}
Build info:
- Windows XP
- GHC version 7.4.2
- wxWidgets-2.9.3
- wxHaskell from https://github.com/atzedijkstra/wxHaskell
As no one else has responded so far, I think you are in uncharted
territory; wxHaskell is huge and there are not many applications using it.
If you have figured it all out, I hope you want to write a HaskellWiki
page about it.
Regards,
Henk-Jan van Tuyl
--
http://Van.Tuyl.eu/
http://members.chello.nl/hjgtuyl/tourdemonad.html
Haskell programming
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