The base class for a popup editor, providing a "..." button in the Formula Wizard, which can pop up a modal dialog.
An add-in can extend the Excel Formula Wizard user interface by displaying a popup button ("...") on an argument field. When the user clicks on the button (or presses Alt+Enter), the event is passed to an object derived from CXlWizExUIPopupProviderBase, and the Edit function is called.
To implement a popup editor, the developer must do the following:
A class inheriting from CXlWizExUIPopupProviderBase must provide an implementation of Edit. If a destructor is provided, it must be declared as virtual.