Scene hierarchy traversing application

#define APPID 1234567

#include <windows.h>
#include <iostream>
using namespace std;

#include "default_alien_overloads.h"
using namespace melange;

//----------------------------------------------------------------------------------------
/// Implementation of GetWriterInfo to return the exchange / external application ID and name.
/// @param[in] id                   Application ID.
/// @param[in] appname                  Application string name.
//----------------------------------------------------------------------------------------
void GetWriterInfo(Int32 &id, String &appname);

//----------------------------------------------------------------------------------------
/// Recursive helper function to traverse the hierarchy under a passed object.
/// @param[in] baseObj                  The current object.
/// @param[in] spacer                   String taking care of the spacing the output.
/// @param[in] nestinglevel             The counter to the hierarchy level.
//----------------------------------------------------------------------------------------
void IterateOverObject(BaseObject* baseObj = nullptr, String spacer = "", Int32 nestingLevel = 0);


void GetWriterInfo(Int32 &id, String &appname)
{
    id = APPID;
    appname = "SceneHierarchy";
}

void IterateOverObject(BaseObject* baseObj /*= nullptr*/, String spacer /*= ""*/, Int32 nestingLevel /*= 0*/)
{
    if (nullptr == baseObj)
        return;

    BaseObject *currentObjPtr = baseObj;

    String objName = baseObj->GetName();
    cout << spacer.GetCStringCopy(STRINGENCODING_UTF8) << objName.GetCStringCopy(STRINGENCODING_UTF8) << "["<< nestingLevel <<"]"<<endl;

    spacer += "+";
    nestingLevel++;

    currentObjPtr = baseObj->GetDown();
    while (currentObjPtr)
    {
        IterateOverObject(currentObjPtr, spacer, nestingLevel);
        currentObjPtr = currentObjPtr->GetNext();
    }
}

int main(int argc, Char* argv[])
{
    // Path to the scene to scan.
    const String file = "SceneHierarchy.c4d";

    // Load the scene document.
    BaseDocument *c4dDoc = LoadDocument(file, SCENEFILTER_OBJECTS);
    if (!c4dDoc)
        return -1;

    BaseObject* currentObj = c4dDoc->GetFirstObject();

    while (currentObj)
    {
        IterateOverObject(currentObj, " ", 0);
        cout << endl;
        currentObj = currentObj->GetNext();
    }

    return 0;
}