Add a WTL MDI window into an ATL Control

// MainFrm.h : interface of the CMainFrame class
//
/////////////////////////////////////////////////////////////////////////////

#pragma once

class CMainFrame : public CMDIFrameWindowImpl<CMainFrame>, public CUpdateUI<CMainFrame>,
		public CMessageFilter, public CIdleHandler
{
public:
	DECLARE_FRAME_WND_CLASS(NULL, IDR_MAINFRAME)

	CMDICommandBarCtrl m_CmdBar;

	virtual BOOL PreTranslateMessage(MSG* pMsg)
	{
		if(CMDIFrameWindowImpl<CMainFrame>::PreTranslateMessage(pMsg))
			return TRUE;

		HWND hWnd = MDIGetActive();
		if(hWnd != NULL)
			return (BOOL)::SendMessage(hWnd, WM_FORWARDMSG, 0, (LPARAM)pMsg);

		return FALSE;
	}

	virtual BOOL OnIdle()
	{
		UIUpdateToolBar();
		return FALSE;
	}

	BEGIN_UPDATE_UI_MAP(CMainFrame)
		UPDATE_ELEMENT(ID_VIEW_TOOLBAR, UPDUI_MENUPOPUP)
	END_UPDATE_UI_MAP()

	BEGIN_MSG_MAP(CMainFrame)
		MESSAGE_HANDLER(WM_CREATE, OnCreate)
		COMMAND_ID_HANDLER(ID_APP_EXIT, OnFileExit)
		COMMAND_ID_HANDLER(ID_FILE_NEW, OnFileNew)
		COMMAND_ID_HANDLER(ID_VIEW_TOOLBAR, OnViewToolBar)
		COMMAND_ID_HANDLER(ID_APP_ABOUT, OnAppAbout)
		COMMAND_ID_HANDLER(ID_WINDOW_CASCADE, OnWindowCascade)
		COMMAND_ID_HANDLER(ID_WINDOW_TILE_HORZ, OnWindowTile)
		COMMAND_ID_HANDLER(ID_WINDOW_ARRANGE, OnWindowArrangeIcons)
		CHAIN_MSG_MAP(CUpdateUI<CMainFrame>)
		CHAIN_MSG_MAP(CMDIFrameWindowImpl<CMainFrame>)
	END_MSG_MAP()

// Handler prototypes (uncomment arguments if needed):
//	LRESULT MessageHandler(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
//	LRESULT CommandHandler(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
//	LRESULT NotifyHandler(int /*idCtrl*/, LPNMHDR /*pnmh*/, BOOL& /*bHandled*/)

	LRESULT OnCreate(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
	{
		// create command bar window
		HWND hWndCmdBar = m_CmdBar.Create(m_hWnd, rcDefault, NULL, ATL_SIMPLE_CMDBAR_PANE_STYLE);
		// attach menu
		m_CmdBar.AttachMenu(GetMenu());
		// load command bar images
		m_CmdBar.LoadImages(IDR_MAINFRAME);
		// remove old menu
		SetMenu(NULL);

		HWND hWndToolBar = CreateSimpleToolBarCtrl(m_hWnd, IDR_MAINFRAME, FALSE, ATL_SIMPLE_TOOLBAR_PANE_STYLE);

		CreateSimpleReBar(ATL_SIMPLE_REBAR_NOBORDER_STYLE);
		AddSimpleReBarBand(hWndCmdBar);
		AddSimpleReBarBand(hWndToolBar, NULL, TRUE);

		CreateMDIClient();
		m_CmdBar.SetMDIClient(m_hWndMDIClient);

		UIAddToolBar(hWndToolBar);
		UISetCheck(ID_VIEW_TOOLBAR, 1);

		// register object for message filtering and idle updates
		/*
		CMessageLoop* pLoop = _Module.GetMessageLoop();
		ATLASSERT(pLoop != NULL);
		pLoop->AddMessageFilter(this);
		pLoop->AddIdleHandler(this);
		*/
		return 0;
	}

	LRESULT OnFileExit(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		PostMessage(WM_CLOSE);
		return 0;
	}

	LRESULT OnFileNew(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		CChildFrame* pChild = new CChildFrame;
		pChild->CreateEx(m_hWndClient);

		// TODO: add code to initialize document

		return 0;
	}

	LRESULT OnViewToolBar(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		static BOOL bVisible = TRUE;	// initially visible
		bVisible = !bVisible;
		CReBarCtrl rebar = m_hWndToolBar;
		int nBandIndex = rebar.IdToIndex(ATL_IDW_BAND_FIRST + 1);	// toolbar is 2nd added band
		rebar.ShowBand(nBandIndex, bVisible);
		UISetCheck(ID_VIEW_TOOLBAR, bVisible);
		UpdateLayout();
		return 0;
	}

	LRESULT OnAppAbout(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		CAboutDlg dlg;
		dlg.DoModal();
		return 0;
	}
	LRESULT OnWindowCascade(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		MDICascade();
		return 0;
	}

	LRESULT OnWindowTile(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		MDITile();
		return 0;
	}

	LRESULT OnWindowArrangeIcons(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		MDIIconArrange();
		return 0;
	}
};