Orcad Capture TCL scripting documentation

Talking about TCL scripting, in a chapter of Cadence help documentation, under  "OrCAD Capture Information Model" / "Basic Object"  there are many reference to header file like as: DboBase.h DbProp.h DboValue.h Value.h DboUProp.h .......

but I'm not able to find these file, probably they contains the enumerators used for many properties fields,

I'm trying to read via a tcl script EffectivePropsIter, the field PropType refers to "Value.h" file !

In documentation you can read the following:

Example Use of EffectivePropsIter

The EffectivePropsIter is somewhat more complex than normal iterators since it does not return an object. Since it is not possible to query the object about itself, extra information is returned by the NextEffectiveProp() function:

PropName: string which is name of property
PropValue: string which is value of property in string form
PropType: Value type return - see Value.h for enumeration
bEditable: TRUE if the property can be edited, else FALSE

Does anyone know the location of these files?