ShowContrastDlg Example for C++ 5.0 and later

void CDialogs::OnShowContrastDlg()
{
	HRESULT hr;
	int nRet;

	ILEADRasterDlgKrn_U *m_pRasterDlgKrn = NULL;
	hr = CoCreateInstance(CLSID_LEADRasterDlgKrn_U,
		NULL,
		CLSCTX_ALL,
		IID_ILEADRasterDlgKrn_U,
		(LPVOID*)&m_pRasterDlgKrn);

	ILEADRasterDlgClr_U *m_pRasterDlgClr = NULL;
	hr = CoCreateInstance(CLSID_LEADRasterDlgClr_U,
		NULL,
		CLSCTX_ALL,
		IID_ILEADRasterDlgClr_U,
		(LPVOID*)&m_pRasterDlgClr);

	nRet = m_pRasterDlgKrn->InitDlg(INIT_WITH_COLOR);

	m_pRasterDlgClr->UIFlags = CONTRAST_SHOW_PREVIEW |
		CONTRAST_SHOW_TOOL_ZOOMLEVEL;
	m_pRasterDlgClr->Bitmap =  m_pLead1.GetBitmap();

	nRet = m_pRasterDlgClr->ShowContrastDlg((long)m_hWnd);
	if (nRet == 0 && m_pRasterDlgClr->DialogStatus == DLG_OK )
	{
		m_pLead1.Contrast(m_pRasterDlgClr->Change);
	}
}