Code I see almost everywhere -- is it from somewhere in 3DSMAX SDK?

gistfile1.cpp

Modifier* FindPhysiqueModifier(AXNode* nodePtr)
{
    // Get object from node. Abort if no object.
    Object* ObjectPtr =((INode*)nodePtr)->GetObjectRef();
 
    //DebugBox("* Find Physiqye Modifier");
    
    if (!ObjectPtr) return NULL;
 
    // Is derived object ?
    if (ObjectPtr->SuperClassID() == GEN_DERIVOB_CLASS_ID)
    {
        // Yes -> Cast.
        IDerivedObject* DerivedObjectPtr = static_cast<IDerivedObject*>(ObjectPtr);
 
        // Iterate over all entries of the modifier stack.
        int ModStackIndex = 0;
        while (ModStackIndex < DerivedObjectPtr->NumModifiers())
        {
            // Get current modifier.
            Modifier* ModifierPtr = DerivedObjectPtr->GetModifier(ModStackIndex);
 
            DebugBox("Modifier Testing: %i \n",ModStackIndex);
 
            // Is this Physique ?
            if (ModifierPtr->ClassID() == Class_ID(PHYSIQUE_CLASS_ID_A, PHYSIQUE_CLASS_ID_B))
            {
                DebugBox("physique modifier found");
                // Yes -> Exit.
                return ModifierPtr;
            }
 
            // Next modifier stack entry.
            ModStackIndex++;
        }
    }
    // Not found.
    return NULL;
}
 
 
Modifier* FindMaxSkinModifier( AXNode* nodePtr)
{
    // Get object from node. Abort if no object.
    Object* ObjectPtr =((INode*)nodePtr)->GetObjectRef();
    
    if (!ObjectPtr) return NULL;
 
    // Is derived object ?
    if (ObjectPtr->SuperClassID() == GEN_DERIVOB_CLASS_ID) 
    {
        // Yes -> Cast.
        IDerivedObject* DerivedObjectPtr = static_cast<IDerivedObject*>(ObjectPtr);
 
        // Iterate over all entries of the modifier stack.
        int ModStackIndex = 0;
        while (ModStackIndex < DerivedObjectPtr->NumModifiers())
        {
            // Get current modifier.
            Modifier* ModifierPtr = DerivedObjectPtr->GetModifier(ModStackIndex);
 
            //DebugBox("Modifier Testing: %i \n",ModStackIndex);
 
            // Is this Physique ?
            if( ModifierPtr->ClassID() == Class_ID(SKIN_CLASSID) ) //PHYSIQUE_CLASS_ID_A, PHYSIQUE_CLASS_ID_B))
            {
                DebugBox("Skin modifier found");
                // Yes -> Exit.
                return ModifierPtr;
            }
            // Next modifier stack entry.
            ModStackIndex++;
        }
    }
    // Not found.
    return NULL;
}