Hi

I have a Qt application with a QDrag event pending.
If the user drop it outside of the window (at example on desktop) how can I handle that?
I don't need to know where he drop the object but I need to know that he do that.

It is up to the application being dropped on to handle the release... unless you are talking about the transfer of data to the application that was dropped on...

Thanks for the answer.

I write a card game and I use QDrag to drag cards. But if I release one of them outside of the game's window it became definitely lost.
I need to know that the card is being dropped outside of the window so I can properly handle the error.

Whilst I don't know how to handle this, you may wish to ask the KDE Games developers how they accomplish this. Their mailing list is kde-games-devel@kde.org