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MFC:Fill Background color of the Dialog

· One min read

MFC Tip: To fill the Background color of the Dialog and get the background of the controls to look correct

  1. Handle the ON_WM_ERASEBKGND Message and write the following code

     BOOL CTNV_MFCDialogDemoDlg::OnEraseBkgnd(CDC\* pDC)
     {
     CRect r;
     //GetClientRect gets the width & height of the client area of the Dialog
     GetClientRect(&r);
     CBrush br(RGB(0,255,0));
     pDC->SelectObject(br);
     pDC->FillRect(r,&br);
     
     //Make sure to return TRUE;
      //return CDialogEx::OnEraseBkgnd(pDC);
     return TRUE;
     }

  2. To  get the background of the controls to look correct Handle the ON_WM_CTLCOLOR Message and write the following code - Make sure to return the Brush Handle which was created same as a color of Dialog Background.

    HBRUSH CTNV_MFCDialogDemoDlg::OnCtlColor(CDC\* pDC, CWnd* pWnd, UINT nCtlColor)
    {
    //HBRUSH hbr = CDialogEx::OnCtlColor(pDC, pWnd, nCtlColor);
    //return hbr;


    //Make sure to return the Brush color should be same as Dialog Background color 
    CBrush br(RGB(0,255,0));
    return (HBRUSH)br; 
    }