Expands or contracts the image (zooms in or out) vertically.

A Double value.  

object.MagnificationY [= value]

The MagnificationY Property syntax has these parts:

Although this property accepts any positive valued real number, The viewer can only approximate the magnification desired by duplicating individual image pixels for display so that the size of the displayed image approaches the magification desired. Due to the nature of digital display, individual pixels are always replicated an integral number of times.

Setting this property will also force the AutoZoomMode property to be set to “mazmNone”.

If the client application supports the OnPropertyChanged( ID_McDisplay_MagnificationY) event, the client application may choose to retrieve the ZoomedImageHeight properties and resize itself. This event is not fired if MagnificationY is changed via an assignment to Magnification; in that case only the OnPropertyChanged( ID_McDisplay_Magnification) event is fired.