VC 中怎样改变窗体背景色

首先在头文件里定义一个背景色的宏：

#define DLG_BACKGROUND RGB(220, 210, 201)

然后在CPP文件里添加映射二个函数：

BEGIN_MESSAGE_MAP(CDb9EWaveProDlg, CDialogEx)

  ON_WM_CTLCOLOR()//字体颜色
  ON_WM_ERASEBKGND()  //背景色

END_MESSAGE_MAP()

重载函数定义例如以下：

HBRUSH CxxDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) 
{
	HBRUSH hbr =  CDialog::OnCtlColor(pDC, pWnd, nCtlColor);

	if (nCtlColor == CTLCOLOR_EDIT || nCtlColor == CTLCOLOR_LISTBOX)
	{
		pDC->SetBkColor(RGB(255, 255, 255));   

		return hbr;
	}
	else
	{
		HBRUSH hBrush =  CreateSolidBrush(DLG_BACKGROUND); //创建背景刷;
		pDC->SetBkMode(TRANSPARENT);
		return hBrush;
	}
}
 

BOOL CxxDlg::OnEraseBkgnd(CDC* pDC) 
{
	 CBrush back(DLG_BACKGROUND);
	 CBrush* pold=pDC->SelectObject(&back);
	 CRect rect;
	 pDC->GetClipBox (&rect);
	 pDC->PatBlt (rect.left,rect.top,rect.Width(),rect.Height(),PATCOPY);
         pDC->SelectObject(pold);
	return TRUE; 
}

OK, Down.