WIA_IPS_PHOTOMETRIC_INTERP
The WIA_IPS_PHOTOMETRIC_INTERP property contains the current setting for white and black pixels. The WIA minidriver creates and maintains this property.
Property Type: VT_I4
Valid Values: WIA_PROP_LIST
Access Rights: Read/write
Remarks
An application reads the WIA_IPS_PHOTOMETRIC_INTERP property to determine the value assigned to white or black pixels (depending on what the application is doing).
The following table describes the constants that are valid with WIA_IPS_PHOTOMETRIC_INTERP.
| Value | Definition |
|---|---|
| WIA_PHOTO_WHITE_0 | White is 0, and black is 1. |
| WIA_PHOTO_WHITE_1 | White is 1, and black is 0. |
If a device can be set to only a single value, create a WIA_PROP_LIST type, and place the valid value in it.
The WIA_IPS_PHOTOMETRIC_INTERP property is required for all image acquisition items and stored images.
Requirements
Header: wiadef.h (include Wiadef.h)