Crystal Report XI (C++) : Leak with IReport object ... I think.

Question

Post Author: NicolasG
CA Forum: Other
Hi, I'm working on an application that is using Crystal Report to generate report from a report file (.rpt) and a Microsoft Access (.mdb) file. During our stress test, I noticed that the application memory keep growing. After some work, I came up with a really simple application that reproduced the problem.The application consist in one thread that keep opening report from the report file (i.e. I don't even use the database file yet).Here is a code sample : void CMemoryLeakDlg::GenerateReport(void* param){    CoInitialize(NULL);    OutputDebugString("Generating report - Starting ...\n");    Sleep(1000);    CMemoryLeakDlg* pThis = static_cast<CMemoryLeakDlg*>(param);    ASSERT(pThis);        IApplicationPtr pApplication;    try    {        HRESULT hRes = pApplication.CreateInstance("CrystalRuntime.Application.11");        if (FAILED(hRes))        {            ASSERT(FALSE);        }                ASSERT(pApplication != NULL);                IReportPtr pReport;        while (pThis->m_bWorking)        {            bstrt bstrReportPath(pThis->m_strReportPath);            pReport = pApplication->OpenReport(bstrReportPath);            pReport.Release();            ASSERT(pReport == NULL);        }        pApplication.Release();        ASSERT(pApplication == NULL);    }    catch (_com_error& e)    {        UNREFERENCED_PARAMETER(e);        ASSERT(FALSE);    }    Sleep(1000);    OutputDebugString("Generating report - Ended\n");}I am not a COM expert programmer and probably I am not using the COM interface correctly. My assumption is that I am not closing the report correctly and that the memory is not freed.Any ideas? Any help would be greatly appreciated.Thanks a lot!Nicp.s. We are using Crystal Report XI 11.0.0.1994

Answer 1

Post Author: DLO34
CA Forum: Other
I am seeing this issue also. It seems to be related to the size of the RPT file also. It leaks about 10MB with a 1MB RPT file. I tried opening and closing the RDC print engine for each report but it still leaks. I ran my application through BoundsChecker and it shows that the leak is occurring in the Crystal API. It looks like the release method doesn't work. Crystal Report XI 11.0.0.895