can not create a button inside a child view of a frame

Hello,

I need your help in order to figure out why I am not able to create a button control at runetime within a client view area.

The main classes are listed below (the code that does not work resides in method OnCreate of the class CTest_wtlView):

// the client view

class CTest_wtlView : 
    public CScrollWindowImpl<CTest_wtlView, CWindow, CWinTraits<WS_OVERLAPPEDWINDOW | WS_VISIBLE> >
{
public:
    DECLARE_WND_CLASS_EX(GetWndClassName(),
        CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS, COLOR_3DFACE)

    static LPCTSTR GetWndClassName() { return _T("CTest_wtlView"); }

    BOOL PreTranslateMessage(MSG* /*pMsg*/)
    {
        return FALSE;
    }

    BEGIN_MSG_MAP(CTest_wtlView)
        MESSAGE_HANDLER(WM_CREATE, OnCreate)
    END_MSG_MAP()

    LRESULT OnCreate(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
    {
        RECT btnRc = {10, 10, 100, 35};
        m_btn.Create(m_hWnd, &btnRc, _T("Hello"), WS_CHILD | WS_VISIBLE);
        ATLASSERT(m_btn.IsWindow());

        return 0;
    }

    void DoPaint(CDCHandle)
    {
    }

private:
    WTL::CButton m_btn;
};

// the frame (only the important code is listed)
class CMainFrame : 
public CFrameWindowImpl<CMainFrame>, 
public CUpdateUI<CMainFrame>,
public CMessageFilter, public CIdleHandler
{
public:
	DECLARE_FRAME_WND_CLASS(NULL, IDR_MAINFRAME)

	CTest_wtlView m_view;

	CCommandBarCtrl m_CmdBar;

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

		return m_view.PreTranslateMessage(pMsg);
	}

  // ... skiping messages map

    // CFrameWindowImplBase::UpdateLayout override for CCS_TOP status bar
	void UpdateLayout(BOOL bResizeBars = TRUE)
    {
        if (m_view.IsWindow()) {
            RECT wndRc;
            GetClientRect(&wndRc);

            m_view.SetWindowPos(NULL, &wndRc, SWP_NOZORDER | SWP_NOACTIVATE);
        }
    }

	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);

		CreateSimpleStatusBar();

		m_hWndClient = m_view.Create(m_hWnd, rcDefault, 0, WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN, WS_EX_CLIENTEDGE);

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

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

		return 0;
	}

  // ...
}

Thanks for your support,
Florin



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