WIA_IPS_OPTICAL_YRES
The WIA_IPS_OPTICAL_YRES property contains the highest-supported vertical optical resolution of a device, in dots per inch (dpi). The WIA minidriver creates and maintains this property.
Property Type: VT_I4
Valid Values: WIA_PROP_NONE
Access Rights: Read-only
Requirements
Header: wiadef.h (include Wiadef.h)