This macro creates an item type value, a 32-bit value that specifies an item type and the folio in which the item type is defined. This value is required by other procedures that deal with items, such as CreateItem() and FindItem().
Arguments
a
The item number of the folio in which the item type of the item is defined. For a list of folio item numbers, see the "Portfolio Items" chapter.
b
The item type number for the item. For a list of item type numbers, see the "Portfolio Items" chapter.
Return Value
The macro returns an item type value or an error code (a negative value) if an error occurs.