GetPdfAOpenMagnification

 Returns the zoom settings.   This value specifies the zoom settings what are used in the viewer when opening the printed PDF/A document.

GetPdfAOpenMagnification (pBlackIceDEVMODE As Long) As Long

Input value    - pointer to the BlackIceDEVMODE structure.

Return value - one of the following values:
0: Use the PDF viewer’s default zoom settings
1: Scale the PDF to fit to the width of the viewing screen
2: Scale the PDF to fit to the height of the viewing screen.
3: Scales the PDF to fit to the height and width of the viewing window.
4: Uses the custom zoom percentage of the opened PDF in the PDF viewer. The custom zoom percentage value can be returned by the GetPdfAOpenZoom function

NOTE: For 32-bit applications , use pBlackIceDEVMODE as Integer, instead of Long.