void VegaTab3::Start()
{   btnStart.Disable();
    btnStop.Enable();
    int int_row = arrp.GetCursor();
    if (int_row < 0) return; //prevent the crash of the application when int_row = -1)
    for (int i = int_row; i<arrp.GetCount(); i++) {
    	SetTimeCallback(500, THISBACK1(Play, i));
    }
    btnStart.Enable();
    btnStop.Disable();
}

void VegaTab3::Play(int i)
{	
    ISpVoice * pVoice = NULL;
    if (FAILED(::CoInitialize(NULL))) return ;

    //std::wstring in = L"";
    WString in;

    HRESULT hr = CoCreateInstance(CLSID_SpVoice, NULL, CLSCTX_ALL, IID_ISpVoice, (void **)&pVoice);    
	if(SUCCEEDED(hr))
	{					
        	//...
                // select a word
                // ...

                hr = pVoice->Speak((LPCWSTR)in, NULL, NULL);  //play it             
	
		pVoice->Release();
                pVoice = NULL;
	}
    ::CoUninitialize();
}

void VegaTab3::Stop()
{ 	
    KillTimeCallback();
	btnStart.Enable();
	btnStop.Disable();
}