To access an object's header, you can use the object specific keywords.
These are read only and should not be changed. They are as follows:
FormatPrint ("This object: %s is %d bytes large, has %d properties and $%04x as it's -info-." objectName objectSize objectTotalProperties objectInfo)
FormatPrint(
"%s\n"+
"object at $%04x of $%04x\n"+
"Methods at: $%04x\n"+
"-info-: $%04x\n"+
"Properties at: $%04x\n"+
"Size: %d bytes\n"+
"Total Properties: %d\n"+
"Segment Type: %x\n"
objectName
objectSpecies
objectSuperclass
objectFunctionArea
objectInfo
objectLocal
objectSize
objectTotalProperties
objectType
)