I have a combobox-like control consisting of a Popup that shows a TreeView. StaysOpen is set to false. I'm working on a bug where the property page containing the control is scrollable. While the Popup is popped up, using the mouse wheel over the property page scrolls the page behind the popup.
How would I get the wheel to
1) Close the popup when it's not over the popup.
2) Work on the TreeView when it's over the popup.