Image Intent Constants
Image intent constants specify what type of data the image is meant to represent. The WIA_IPS_CUR_INTENT scanner property uses these flags. To provide an intent, combine an intended image type flag with an intended size/quality flag by using the OR operator. WIA_INTENT_NONE should not be combined with any other flags. Note that an image cannot be both grayscale and color.
The following are valid image intent constants:
| Intended image type flags | Description |
|---|---|
| WIA_INTENT_NONE | Default value. Do not preset any properties. |
| WIA_INTENT_IMAGE_TYPE_COLOR | Preset properties for color content. |
| WIA_INTENT_IMAGE_TYPE_GRAYSCALE | Preset properties for grayscale content. |
| WIA_INTENT_IMAGE_TYPE_TEXT | Preset properties for text content. |
| WIA_INTENT_IMAGE_TYPE_MASK | Mask for all of the image type flags. |
| Intended image size/quality flags | Description |
|---|---|
| WIA_INTENT_MINIMIZE_SIZE | Preset properties to minimize image size. |
| WIA_INTENT_MAXIMIZE_QUALITY | Preset properties to maximize image quality. |
| WIA_INTENT_SIZE_MASK | Mask for all of the size/quality flags. |
| WIA_INTENT_BEST_PREVIEW | Specifies the best quality preview. |
The following list shows the C/C++ constant name followed by the corresponding name in parentheses that is used in scripting. The script names are from the WiaIntent enumerated type. Note that not all constants are available through script.
| Constant/value | Description |
|---|---|
|
Preset properties for color content. |
|
Preset properties for grayscale content. |
|
Preset properties for text content. |
|
Preset properties to minimize image size. |
|
Preset properties to maximize image quality. |
|
Specifies the best quality preview. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 2000 Professional, Windows XP [desktop apps only] |
| Minimum supported server |
Windows Server 2003 [desktop apps only] |
| Header |
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