The following kernel function calls control items. See Kernel Folio Calls, in the 3DO System Programmer's Reference for a complete description of these calls.

The following calls create items:

• CreateBufferedMsg() Creates a buffered message.
• CreateIOReq() Creates an I/O request.
• CreateItem() Creates an item.
• CreateMsg() Creates a standard message.
• CreateMsgPort() Creates a message port.
• CreateSemaphore() Creates a semaphore.
• CreateSmallMsg) Creates a small message.
• CreateThread() Creates a thread.
• CreateUniqueMsgPort() Creates a message port with a guaranteed unique name.
• CreateUniqueSemaphore() Creates a semaphore with a guaranteed unique name.

The following calls open items:

• FindAndOpenDevice() Finds and opens a device item.
• FindAndOpenFolio() Finds and opens a folio item.
• FindAndOpenItem() Finds and opens an item.
• FindAndOpenNamedItem() Finds an item by name and opens it.
• OpenItem() Opens a system item.
• OpenNamedDevice() Opens the named device.

The following calls manage items:

• CheckItem() Checks to see if an item exists.
• FindDevice() Finds a device item by name.
• FindFolio() Finds a folio item by name.
• FindItem() Finds an item by type and tag arguments.
• FindMsgPort() Finds a message port item by name.
• FindNamedItem()Finds an item by name.
• FindSemaphore() Finds a semaphore item by name.
• FindTask()Finds a task item by name.
• FindVersionedItem()Finds an item by name and version number.
• LookupItem()Gets a pointer to an item.
• SetItemOwner()Changes the owner of an item.
• SetItemPri()Changes the priority of an item.

The following calls close and delete items:

• CloseItem() Closes a system item.
• CloseNamedDevice() Closes a device item.
• DeleteIOReq() Deletes an IOReq item.
• DeleteItem() Deletes an item.
• DeleteMsg()Deletes a message item.
• DeleteMsgPort()Deletes a message port item.
• DeleteSemaphore() Deletes a semaphore item.
• DeleteThread()Deletes a thread.