Ultima Online Protocol :: Drag Item
Packet # Packet Name Length Client Server Obsolete
0x23 Drag Item 0x001A X X
Data Type Description
byte 0x23 The packet number.
ushort Artwork The item's artwork number.
byte 0x00 Unknown.
ushort 0x0000 Unknown.
ushort Amount The amount of the item being dragged.
uint Source_Container The serial of the source container.

The serial 0xFFFFFFFF is used for the ground.
ushort X The X-axis position of the source.
ushort Y The Y-axis position of the source.
byte Z The Z-axis position of the source.
uint Target_Container The serial of the target container.

The serial 0xFFFFFFFF is used for the ground.
ushort X The X-axis position of the target.
ushort Y The Y-axis position of the target.
byte Z The Z-axis position of the target.

Packet Description:
This is sent by the server to display an item being dragged from one place to another.

Note that this does not actually move the item, it just displays an animation.