These ActiveX methods all start with 'Z'.
Zooms the current viewport to display the entire drawing.
Zooms the current viewport to a specified center point and magnification.
Zooms the current viewport to the drawing extents.
Zooms the current viewport to a window defined by points picked on the screen.
Zooms the current viewport to its previous extents.
Zooms the current viewport to given scale factor.
Zooms the current viewport to the area specified by two opposite corners of a rectangle.