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ActiveX/COM Problem

I'm creating a chartfx component in a in proc com server:
      m_Chart.Create("ChartFx", WS_VISIBLE | WS_CHILD | WS_BORDER, aRect, this, IDR_CHART1);
      m_Chart.SetType(SCATTER | CT_TRACKMOUSE | CT_COLORLINE | CT_PAINTMARKER | CT_TOOL);
      m_Chart.SetWindowPos(0, 0, 0, aRect.Width(), aRect.Height(), SWP_NOMOVE | SWP_NOZORDER);

when I close the app, here's the call stack:
NTDLL! 77f76148()
NTDLL! 77f8a8b9()
NTDLL! 77f83209()
KERNEL32! 77f11ad0()
CFX32! 0277c496()
USER32! 77e71ab7()
USER32! 77e71a77()
NTDLL! 77f7624f()
CFX32! 02771c05()
COleDispatchDriver::~COleDispatchDriver() line 80 + 15 bytes
COleControlSite::~COleControlSite() line 99 + 33 bytes
COleControlSite::`scalar deleting destructor'(unsigned int 1) + 15 bytes
COleControlContainer::~COleControlContainer() line 120 + 31 bytes
COleControlContainer::`scalar deleting destructor'(unsigned int 1) + 15 bytes
CWnd::OnDestroy() line 764 + 34 bytes
CWnd::OnWndMsg(unsigned int 2, unsigned int 0, long 0, long * 0x0012f678) line 1815
CWnd::WindowProc(unsigned int 2, unsigned int 0, long 0) line 1575 + 30 bytes

When I QueryInterface I do a Release so the reference count should be 1.

I'm doing the same with formula1 and have no problems.

Anyone know why the ReleaseDispatch() is being called before any of the destructor methods?

Tommy Hui

When you do a QueryInterface(), which interface do you release?

richp

ASKER

     m_pVolSurf = GetETSControl(lpUnk, &lpContext);
      lpContext->Release();
....
VolSurface * CVolatilityCtl::GetETSControl(      IUnknown* pUnk, ISnapInMarketSet** ppETSCtrl)
{
      _ASSERTE(pUnk);
      if (!pUnk || pUnk->QueryInterface(IID_IMarketSet_SnapIn, (LPVOID*) ppETSCtrl) != S_OK)
            return NULL;

ASKER CERTIFIED SOLUTION

Tommy Hui

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