Using ChangeStatus method in a screen - 9.05.700C

In the method ChangeStatus for Customer Shipment entry, there is a parameter called ipShipHedRowID as shown below:

Epicor.Mfg.BO.CustShip
ChangeStatus
Epicor.Mfg.BO.CustShipDataSet
<parameters>
'ipShipHedRowID' type='string' ><![CDATA[0x003d0d8000010000574845524520282850524f47524553535f5245434944203d200000010c0008fffb0000000000000000000000000000014029292000]]>
'ipStatus' type='string' ><![CDATA[Close]]>
'ipResetCODCharges' type='bool' ><![CDATA[False]]>
'ipResetInsCharges' type='bool' ><![CDATA[False]]>

I want to use this method in a screen and I need to pass in this Row ID. Using ShipHead.SysRowID does not work - perhaps it just needs to be converted to another format? Anyone have any suggestions?

Thanks,

- Neil