IG_TWAIN_cap

This function gets information about a capability from a Data Source.

Declaration:

	Copy Code
AT_ERRCOUNT ACCUAPI IG_TWAIN_cap_get( AT_LMODE nCap, AT_MODE nMsgId, LPHTWAINCAP lphTWAINCap );

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.
lphTWAINCap	LPHTWAINCAP	Handle to the container of the requested capability. References the container structure where detailed information about the capability is stored.

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

Message ID. Can be one of the following values:

lphTWAINCap

LPHTWAINCAP

Handle to the container of the requested capability. References the container structure where detailed information about the capability is stored.

Returns the number of ImageGear errors that occurred during this function call. If there are no errors, the return value is IGE_SUCCESS.

This function does not process image pixels.

Use IG_TWAIN_source_open() to select the desired Data Source, prior to calling this function.