Visual Basic Extensibility Reference
Close Method (VBA Add-In Object Model)
Closes and destroys a window.
The object placeholder is an object expression that evaluates to an object in the Applies To list.
The following types of windows respond to the Close method in different ways:
For a window that is a code pane, Close destroys the code pane.
For a window that is a designer, Close destroys the contained designer.
For windows that are always available on the View menu, Close hides the window.