kStatus GdkToolInput_InputDataAt	(	GdkToolInput	input,
		kSize	id,
		GdkDataSource	source,
		GvDataMsg *	msg
	)

Retrieve the message associated with input data set referenced by the specified index.

Parameters

input	Input item.
id	Input id starting from 0; note that id 0 is reserved for the primary data inputs (see GDK_DATA_PRIMARY_INPUT_INDEX). Secondary data inputs have id >= GDK_DATA_SECONDARY_INPUT_START_INDEX. It is NOT an index into the internal data structure. This argument is often referred to as an index which is misleading.
source	Source of the data. For scan data inputs (profiles and surfaces) and non-scan data inputs (measurements and features), it has to be one of the following: GDK_DATA_SOURCE_TOP GDK_DATA_SOURCE_BOTTOM GDK_DATA_SOURCE_TOP_LEFT GDK_DATA_SOURCE_TOP_RIGHT GDK_DATA_SOURCE_TOP_BOTTOM GDK_DATA_SOURCE_LEFT_RIGHT
msg	Pointer variable to store the associated message found.

Returns

Operation status.