popup menu in TreeCtrl drop handler

[Danny Shevitz]

In a TreeCtrl I am trying to display a popup menu when I drag something
onto the TreeCtrl. I have all the events worked out and the menu created. 
It's mostly working except that the popup menu flashes instead of staying up. 
It is impossible to select an item in the popup menu. The TreeCtrl has a 
DropTarget.

I am simply implementing (in the OnData method of the DropTarget):

menu = ...
self.treeCtrl.PopupMenuXY(menu,point[0], point[1])

any ideas what's going on?

thanks,
Danny