The WIA_IPA_DATATYPE property contains the current data type setting for a device. A 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_IPA_DATATYPE property to determine the data type of an image. The application writes this property to set the current data type of the image that is about to be transferred. The following table describes the constants that are valid with WIA_IPA_DATATYPE when the property is not set to WiaImgFmt_RAW. Data type Definition WIA_DATA_AUTO This value is valid for all programmable image data source items, including the Flatbed and Feeder. 2009 Polaris Rzr 800 Service Manual Download. When this value is supported by the WIA mini-driver the WIA application client can set: WIA_IPA_DATATYPE in order to enable automatic color detection at the device.

When WIA_DATA_AUTO is set, the WIA mini-driver must update on the same item to WIA_DEPTH_AUTO (which must be a supported value if the device supports automatic color). When the value WIA_DEPTH_AUTO is supported, the WIA_IPA_DATATYPE value WIA_DATA_AUTO is no longer optional and becomes a required value. WIA_DATA_COLOR Scan data is red-green-blue (RGB).

The full color format is described by using the following WIA properties: • • • • • • WIA_DATA_COLOR_DITHER The same as WIA_DATA_COLOR, except that the data is dithered by using the currently selected dither pattern. WIA_DATA_COLOR_THRESHOLD Color threshold data. WIA_DATA_DITHER Scan data is dithered by using the currently selected dither pattern. Macfamilytree Serial 6.3.9. WIA_DATA_GRAYSCALE Scan data represents intensity. The palette is a fixed, equally spaced grayscale with a depth that the property specifies.

Serial Experiments Lain Rus Sub there. WIA_DATA_THRESHOLD The threshold is one bit per pixel of black-and-white data. Data over the current value of is converted to white; data under this value is converted to black. The WIA_IPA_DATATYPE property is also used to describe the type of RAW data transfer to be used when the application sets the property to the value WiaImgFmt_RAW. The driver should set the WIA_IPA_DATATYPE property to a list of allowed values from which the application can pick. The following table lists the constants that are valid with WIA_IPA_DATATYPE when WIA_IPA_FORMAT is set to WiaImgFmt_RAW. Data type Description WIA_DATA_GRAYSCALE Scan data represents intensity.

When this value is supported by the WIA mini-driver the WIA application client can set: WIA_IPA_DATATYPE in order to enable automatic color detection at the device. Wia driver free download - DL Driver Updater, MUSTEK 1248UB WIA Scanner, BearPaw 1200CU Plus WIA Scanner, and many more programs. Windows Image Acquisition Drivers Windows Image. This documentation explains how to develop a WIA driver that supports communication to imaging devices such. May 24, 2017 Canon Scanner driver problems. The issue IS that although the Canon supplied driver for the 64 bit Windows 7 OS loads the WIA driver.