Scanning source. 0x0514 ∙ 1300
IG_ISIS_TAG_SCANTYPE specifies the scanning source (flatbed, feeder, and so forth) on those scanners that support this functionality.
IG_ISIS_TAG_TYPE_SHORT
Drivers for scanners that support selecting the source of the scanned image.
IG_ISIS_TAG_SCANTYPE can be set to any one of the following values:
| Value | Defined Constant | Meaning |
|---|---|---|
| 0 | IG_ISIS_SCANTYPE_AUTOMATIC | Scan from the ADF if pages are detected; otherwise, scan from the flatbed. |
| 1 | IG_ISIS_SCANTYPE_TRANSPARENCY | Scan from the transparency unit. |
| 2 | IG_ISIS_SCANTYPE_FLATBED | Scan from the flatbed. |
| 3 | IG_ISIS_SCANTYPE_FEEDERIG_ISIS_SCANTYPE_FRONTONLY | Scan only the front side of the page (duplex scanner). |
| 4 | IG_ISIS_SCANTYPE_DUPLEXIG_ISIS_SCANTYPE_FRONTBACK | Scan in duplex mode (duplex scanner), from the feeder. |
| 5 | IG_ISIS_SCANTYPE_BACKFRONT | Scan in duplex mode, but return the back side of the page first (duplex scanner), from the feeder. |
| 6 | IG_ISIS_SCANTYPE_BACKONLY | Scan only the back side of the page (duplex scanner), from the feeder. |
IG_ISIS_TAG_SCANTYPE_AUTOMATIC is the default value.
For scanners that implement IG_ISIS_TAG_SCANTYPE, your application can control the source of the scan. For other scanners, most will scan as though this tag is set to IG_ISIS_TAG_SCANTYPE_AUTOMATIC. You can query the choices of this tag to determine the capabilities of the currently-selected scanner.