Checks to see if an item exists.

void *CheckItem( Item i, uint8 ftype, uint8 ntype )

This procedure checks to see if a specified item exists. To specify the item, you use an item number, an item-type number, and the item number of the folio in which the item type is defined. If all three of these values match those of the item, the procedure returns a pointer to the item.

• i The item number of the item to be checked.

• ftype The item number of the folio that defines the item type. (This is the same value that is passed to the MkNodeID() macro.) For a list of folio item numbers, see the Portfolio Item's chapter.

• ntype The item-type number for the item. (This is the same value that is passed to the MkNodeID() macro.) For a list of item-type numbers, see the Portfolio Item's chapter.

If the item exists (and the values of all three arguments match those of the item), the procedure returns a pointer to the item. If the item does not exist, the procedure returns NULL.

Folio call implemented in kernel folio V20.

• item.h ANSI C Prototype

• clib.lib ARM Link Library

CreateItem(), FindItem(), FindNamedItem(), FindVersionedItem(), LookupItem(), MkNodeID()