Add Item to Container (20 bytes)

This is sent by the server to add a single item to a container.

Offset Type     Name             Description
------ -------- ---------------- ------------------------------
 0000  BYTE     cmd
 0001  UINT     serial           item id to add
 0005  USHORT   artwork
 0007  BYTE     unknown1         0x00
 0008  USHORT   amount           # of items
 0010  USHORT   dx               pix-offset from left of the container
 0012  USHOFT   dy               pix-offset from top of the container
 0014  UINT     containerId
 0018  USHORT   hue

Note that this packet should be used only when a player moves an item into a container, not to display its contents. To display a container's contents, use the Container Contents packet.