Re: Not call OnCtlColor

From:

"Scott McPhillips [MVP]" <org-dot-mvps-at-scottmcp>

Newsgroups:

microsoft.public.vc.mfc

Date:

Sat, 5 Sep 2009 09:54:51 -0400

Message-ID:

<#tZf0BjLKHA.1252@TK2MSFTNGP04.phx.gbl>

OnCtlColor is a message handler, but you have not entered the message it
handles in the message map so it is never called. Add this to your message
map:

ON_WM_CTLCOLOR()

This is done automaticlly for you if you add the message handler from the
dialog's property page messages list.

--
Scott McPhillips [VC++ MVP]

"liyong" <liyong@cyberresource.com.cn> wrote in message
news:euqhmmdLKHA.1340@TK2MSFTNGP05.phx.gbl...

hello,
I override the function OnCtlColor , but it not work at all.
I set break point in CAboutDlg::OnCtlColor, I never seen the program
stopped into debug mode in it.

who can tell me why it not work?

code is listed as the following:
//=================================
class CAboutDlg : public CDialog
{
public:
CAboutDlg();

// Dialog Data
enum { IDD = IDD_ABOUTBOX };

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

// Implementation
protected:
CTabCtrl m_tab1;
DECLARE_MESSAGE_MAP()
public:

afx_msg HBRUSH OnCtlColor (CDC * pDCM , CWnd * pWnd , UINT nCtlColor);
BOOL OnInitDialog();

};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{

}

HBRUSH CAboutDlg::OnCtlColor (CDC * pDCM , CWnd * pWnd , UINT nCtlColor)
{
HBRUSH rtn=CDialog::OnCtlColor(pDCM,pWnd,nCtlColor);

if((pWnd->GetSafeHwnd()!= m_tab1.GetSafeHwnd()) &&
(nCtlColor==CTLCOLOR_STATIC))
{
COLORREF color=m_tab1.GetDC()->GetBkColor();
pWnd->GetDC()->SetBkColor(color);
}
return rtn;
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
DDX_Control(pDX, IDC_TAB1, m_tab1);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
ON_NOTIFY(TCN_SELCHANGE, IDC_TAB1, &CAboutDlg::OnTcnSelchangeTab1)
ON_BN_CLICKED(IDOK, &CAboutDlg::OnBnClickedOk)
ON_BN_CLICKED(IDC_BUTTON1, &CAboutDlg::OnBnClickedButton1)
END_MESSAGE_MAP()