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Hi,
While using CExtTabWnd in ATL Composite control,my application crashes while accesing its functions i.e, ItemGetCount(),SelectionGet() etc.

It doesnot crashes on OnTabWndSelectionChange() but crashes while accesing functions ItemGetCount(),SelectionGet() on Handling Rbutton Down etc.

Below is the test code.
CExtTabWnd* m_ProfTab;

m_ProfTab = new CDemoExtTabWnd();
m_ProfTab->Create( CWnd::FromHandle (m_hWnd), CRect(0,0,150,30), IDC_TAB3 , WS_CHILD | WS_VISIBLE, __ETWS_BOLD_SELECTION|__ETWS_ORIENT_TOP, NULL) ;


LRESULT OnRButtonDown(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
long lSel = m_ProfTab->SelectionGet(); //crashes here
long lCount =m_ProfTab->ItemGetCount();//crashes here

}

        CString sFormat;
        //sFormat.Format (_T("%d ,%d "),lSel,lCount);
        //AfxMessageBox (sFormat);

        return 0;
    }

Dear Rajneesh,

Prof-UIS is an MFC extension library by definition and should be called from an MFC-based EXE program. In case your component is critical for your application, we could help you write a similar component based on CExtTabWnd, which is compatible with the ATL control project.

Hi,
I have to use the profuis in my ATL Controls. So what i have to do so that this dll can be used in ATL.


Regards,
Rajneesh

Dear Rajneesh,

You cannot use MFC-extension DLLs (like Prof-UIS) in other DLLs. The DLLs in question should only be used in EXE programs which, in turn, should also be based on MFC.

The solution we can suggest you is to include some of the Prof-UIS source files directly into your ATL project (e.g. ExtTabWnd.*, ExtPaintManager.*). But, in this case, you have to modify those files, i.e. to remove dependency of other library sources.

If you encounter any problems, we can make a test ATL project with the modified version of the tab window inside. BUT PLEASE NOTE: THIS PROJECT WILL NOT USE PROF-UIS DLL.