Re: Why my component does not receive windows messages.

From:
"Mark Salsbery [MVP]" <MarkSalsbery[MVP]@newsgroup.nospam>
Newsgroups:
microsoft.public.vc.mfc
Date:
Thu, 9 Aug 2007 16:01:43 -0700
Message-ID:
<eaATFlt2HHA.4400@TK2MSFTNGP06.phx.gbl>
Where's your message map?

If you added the appropriate items to the message map, do you have an actual
object of the class in existence which has a valid HWND attached?

Mark

--
Mark Salsbery
Microsoft MVP - Visual C++

"Cullen" <cesarcm@yahoo.com> wrote in message
news:%23umTPgt2HHA.5316@TK2MSFTNGP04.phx.gbl...

Hi,

    I created one customized CStatic class, and add some message handlers,
listed part code below:
class CBitmapMisc : public CStatic
{
DECLARE_DYNAMIC(CBitmapMisc)

public:
CBitmapMisc();
virtual ~CBitmapMisc();

... ...
protected:
DECLARE_MESSAGE_MAP()
public:
afx_msg void OnPaint();
afx_msg BOOL OnEraseBkgnd(CDC* pDC);
afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
afx_msg void OnMouseMove(UINT nFlags, CPoint point);
afx_msg void OnLButtonUp(UINT nFlags, CPoint point);
afx_msg void OnKillFocus(CWnd* pNewWnd);
afx_msg void OnSetFocus(CWnd* pOldWnd);
afx_msg void OnDestroy();
};

When I am using this class in application, these windows messages never
pass to this component.

class CTestBitmapDlg : public CDialog
{
// Construction
public:
CTestBitmapDlg(CWnd* pParent = NULL); // standard constructor

// Dialog Data
enum { IDD = IDD_TESTBITMAP_DIALOG };
CBitmapMisc m_vbitmap;

protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support

// Implementation
protected:
HICON m_hIcon;

// Generated message map functions
virtual BOOL OnInitDialog();
afx_msg void OnPaint();
afx_msg HCURSOR OnQueryDragIcon();
DECLARE_MESSAGE_MAP()
};

what did i do wrong? I using vstudio 2005.

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