WIA_IPS_YSCALING
The WIA_IPS_YSCALING property indicates if scaling along the y-axis should be applied to a scan. The WIA minidriver creates and maintains this property.
Property Type: VT_I4
Valid Values: WIA_PROP_RANGE or WIA_PROP_LIST
Access Rights: Read/write or read-only
Remarks
Valid values for the WIA_IPS_YSCALING property range from 1 through 65535.
WIA_IPS_YSCALING indicates only scaling along the y-axis. If you want to scale an image uniformly, you must set a similar value in WIA_IPS_YSCALING and in the WIA_IPS_XSCALING property.
Consider the following examples:
100, no scaling (1x, 100%). The image is not changed.
050, 1/2 scaling (1/2x, 50%). The image size is reduced along the y-axis by 50% (1/2 the original size).
200, 2x scaling (200%). The image size is enlarged along the y-axis by 200% (double).
Requirements
Header: wiadef.h (include Wiadef.h)