public static void DoDragDrop(DependencyObject dragSource, object data, DragDropEffects allowedEffects,
DragDropCompletedCallback onDragDropCompleted)
{
DragDropCallbackInfo info = new DragDropCallbackInfo {
Callback = onDragDropCompleted
};
int callbackId = info.GetHashCode();
_dragDropCallbacks[callbackId] = info;
DoDragDropHelper(dragSource, data, allowedEffects, callbackId, _dragDropCompleted);
}
private static void OnDragDropCompleted(int callbackId, IntPtr source,
IntPtr data, IntPtr target, IntPtr dropPoint, int effects)
{
try {
DragDropCallbackInfo info = _dragDropCallbacks[callbackId];
info.Callback((DependencyObject)Extend.GetProxy(source, false),
new DataObject(Extend.GetProxy(data, false)), (UIElement)Extend.GetProxy(target, false),
Marshal.PtrToStructure <Point>(dropPoint), (DragDropEffects)effects);
_dragDropCallbacks.Remove(callbackId);
}
catch (Exception e) {
Noesis.Error.UnhandledException(e);
}
}
