ATL Splitter ActiveX control

// SplitterPropPage.cpp : Implementation of CSplitterPropPage
#include "stdafx.h"
#include "SplitterATLControl.h"
#include "Splitter.h"
#include "SplitterPropPage.h"

/////////////////////////////////////////////////////////////////////////////
// CSplitterPropPage
STDMETHODIMP CSplitterPropPage::Apply()
{
	ATLTRACE(_T("CSplitterPropPage::Apply\n"));

	CComBSTR strFirstName,strSecondName,strPosition;
	GetDlgItemText(IDC_COMBO_FIRST,strFirstName.m_str);
	GetDlgItemText(IDC_COMBO_SECOND,strSecondName.m_str);
	GetDlgItemText(IDC_EDIT_POSITION,strPosition.m_str);

	float fltPosition;
	swscanf(strPosition.m_str,L"%f",&fltPosition);

	BOOL bVertical=IsDlgButtonChecked(IDC_CHECK_SYTLE);
	
	for (UINT i = 0; i < m_nObjects; i++)
	{
		CComQIPtr<ISplitter, &IID_ISplitter> pSplitter(m_ppUnk[i]);
		pSplitter->put_FirstControlName(strFirstName);
		pSplitter->put_SecondControlName(strSecondName);
		pSplitter->put_SplitterIsVertical(bVertical);
		if(FAILED(pSplitter->put_SplitterPercentPosition(fltPosition)))
			return E_FAIL;
	}
	
	m_bDirty = FALSE;

	return S_OK;
}

LRESULT CSplitterPropPage::OnClickedCheck_sytle(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
	SetDirty(TRUE);
	return 0;
}

LRESULT CSplitterPropPage::OnEditchangeCombo_first(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
	SetDirty(TRUE);
	return 0;
}

LRESULT CSplitterPropPage::OnSelchangeCombo_first(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
	SetDirty(TRUE);
	return 0;
}

LRESULT CSplitterPropPage::OnEditchangeCombo_second(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
	SetDirty(TRUE);
	return 0;
}

LRESULT CSplitterPropPage::OnSelchangeCombo_second(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
	SetDirty(TRUE);
	return 0;
}

LRESULT CSplitterPropPage::OnChangeEdit_position(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
	SetDirty(TRUE);
	return 0;
}


LRESULT CSplitterPropPage::OnInitDialog(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
	USES_CONVERSION;

	//Filling comboboxes
	if(m_nObjects>0)
	{
		CComQIPtr<IPerPropertyBrowsing, &IID_IPerPropertyBrowsing> pPPB(m_ppUnk[0]);
		CALPOLESTR* pCALPOLESTR;
		CADWORD*	pCADWORD;
		pCALPOLESTR=(CALPOLESTR*)CoTaskMemAlloc(sizeof(CALPOLESTR));
		pCADWORD=(CADWORD*)CoTaskMemAlloc(sizeof(CADWORD));

		if(SUCCEEDED(pPPB->GetPredefinedStrings(DISPID_FIRST_CONTROL_NAME,pCALPOLESTR,pCADWORD)))
		{
			for(int i=0; i<pCALPOLESTR->cElems; i++)
			{
				TCHAR* lpstrElem=OLE2T(pCALPOLESTR->pElems[i]);
				CoTaskMemFree(pCALPOLESTR->pElems[i]);
				SendDlgItemMessage(IDC_COMBO_FIRST,CB_ADDSTRING,0,LPARAM(lpstrElem));
				SendDlgItemMessage(IDC_COMBO_SECOND,CB_ADDSTRING,0,LPARAM(lpstrElem));
			}

			CoTaskMemFree(pCALPOLESTR->pElems);
			CoTaskMemFree(pCADWORD->pElems);
		}

		if(pCADWORD)
			CoTaskMemFree(pCADWORD);

		if(pCALPOLESTR)
			CoTaskMemFree(pCALPOLESTR);
	}

	
	for (UINT i = 0; i < m_nObjects; i++)
	{
		CComQIPtr<ISplitter, &IID_ISplitter> pSplitter(m_ppUnk[i]);
		
		CComBSTR strFirstName,strSecondName,strPosition;
		float fltPosition;
		BOOL bVertical;

		pSplitter->get_FirstControlName(&strFirstName.m_str);
		pSplitter->get_SecondControlName(&strSecondName.m_str);
		pSplitter->get_SplitterIsVertical(&bVertical);
		pSplitter->get_SplitterPercentPosition(&fltPosition);

		TCHAR lpstrPosition[20];
		_stprintf(lpstrPosition,_T("%g"),double(fltPosition));

		SetDlgItemText(IDC_COMBO_FIRST,OLE2T(BSTR(strFirstName)));
		SetDlgItemText(IDC_COMBO_SECOND,OLE2T(BSTR(strSecondName)));
		SetDlgItemText(IDC_EDIT_POSITION,lpstrPosition);

		CheckDlgButton(IDC_CHECK_SYTLE,bVertical);
	}

	return 0;
}