This function gets information about a capability from a Data Source.
Declaration:
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AT_ERRCOUNT ACCUAPI IG_TWAIN_cap_get(
AT_LMODE nCap,
AT_MODE nMsgId,
LPHTWAINCAP lphTWAINCap
);
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Arguments:
Name |
Type |
Description |
nCap |
AT_LMODE |
The numeric designator of the capability (of the form IG_TW_CAP_xxxx, IG_TW_ICAP_xxxx, or IG_TW_ACAP_xxxx). |
nMsgId |
AT_MODE |
Message ID. Can be one of the following values:
- IG_TW_MSG_GET - Get one or more capability values.
- IG_TW_MSG_GETCURRENT - Get current capability value.
- IG_TW_MSG_GETDEFAULT - Get default (e.g., power up) capability value.
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lphTWAINCap |
LPHTWAINCAP |
Handle to the container of the requested capability. References the container structure where detailed information about the capability is stored. |
Return Value:
Returns the number of ImageGear errors that occurred during this function call. If there are no errors, the return value is IGE_SUCCESS.
Supported Raster Image Formats:
This function does not process image pixels.
Remarks:
Use IG_TWAIN_source_open() to select the desired Data Source, prior to calling this function.