MFC修改窗体背景颜色

afx_msg void OnPaint();  //重写

void CSkinDlg::OnPaint() 
{
    if (IsIconic())
    {
    }
    else
    {
        //修改窗体背景颜色
        CRect rect;
        CPaintDC dc(this);
        GetClientRect(rect);
        
        //设置为白色背景
        dc.FillSolidRect(rect,RGB(255,255,255)); 
        
        CDialog::OnPaint();
    }
}