GetText() memoryleak

Question

This is my first post so be gentle :D

I just started at this job and my first task was to find the leak which I did, pointed out by the comment. I control clicked gettext() and I get

virtual System::WideChar * __fastcall GetText(void); 

I added 5 extra pwide and the leak increased (memory usage in task master increased by 1000).

I tried delete and free but i get exceptions. Anyone got any advice on how to plug the leak?

Here is my code:

UnicodeString CReportManager::GetFinalHTML()
{
UnicodeString ret = "";
ret = "<Reports>";

if( ErrorHTML->Count )
{
    ret += "<Errors>" + UnicodeString(ErrorHTML->GetText()) + "</Errors>";
}

//System::WideChar *pWide= ReportHTML->GetText();
//System::WideChar *pWide4= ReportHTML->GetText();
//System::WideChar *pWide1= ReportHTML->GetText();
//System::WideChar *pWide2= ReportHTML->GetText();
//System::WideChar *pWide3= ReportHTML->GetText();
    //delete pWide;
   //   free(pWide);
    //ret +=pWide;
ret += ReportHTML->GetText();          //leak here
ret += "</Reports>";

#ifdef _DEBUG
ReportHTML->SaveToFile("C:\\debug.xml");
#endif

delete ReportHTML;
delete ErrorHTML;

ReportHTML = NULL;
ErrorHTML = NULL;


return ret;
}

Answer 1

Ok I found the answer, if anyone has the same problem, the solution is StrDispose(pWide); I tried it with all 4 extra pWide and my memory leak was gone :

UnicodeString CReportManager::GetFinalHTML()
{
    UnicodeString ret = "";
    ret = "<Reports>";

    if( ErrorHTML->Count )
    {
        ret += "<Errors>" + UnicodeString(ErrorHTML->GetText()) + "</Errors>";
    }

    System::WideChar *pWide= ReportHTML->GetText();

    //delete pWide;
    //free(pWide);
    ret +=pWide;
    StrDispose(pWide);

    //ret += ReportHTML->GetText();          //leak here
    ret += "</Reports>";

#ifdef _DEBUG
    ReportHTML->SaveToFile("C:\\debug.xml");
#endif

    delete ReportHTML;
    delete ErrorHTML;

    ReportHTML = NULL;
    ErrorHTML = NULL;

    return ret;
}