ShowPosterizeDlg Example for C++ 5.0 and later

void CDialogs::OnShowPosterizeDlg()
{
	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->Levels = 2;
	m_pRasterDlgClr->UIFlags = POSTERIZE_SHOW_PREVIEW |
		POSTERIZE_SHOW_TOOL_ZOOMLEVEL;
	m_pRasterDlgClr->Bitmap = m_pLead1.GetBitmap();

	nRet = m_pRasterDlgClr->ShowPosterizeDlg((long)m_hWnd);
	if (nRet == 0 && m_pRasterDlgClr->DialogStatus == DLG_OK)
	{
		m_pLead1.Posterize(m_pRasterDlgClr->Levels);
	}
}