Change color of combo box

[OneEyeMan]

Hi, ALL,
Is there a way to change the background color of the combo box? Asking because there is no CTLCOLOR event for this control...

Thank you.

[VictorN]

MSDN

[He_That_Is]

You can manually add your own CTLCOLOR functionality, CWnd supports it.

//in the .h file
  afx_msg HBRUSH OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor);

//in the .cpp file
  ON_WM_CTLCOLOR()


HBRUSH CYourClass::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) 
{
  int
    nCtrlID = pWnd->GetDlgCtrlID();
  HBRUSH
    hbr     = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);

  switch(nCtlColor)
  {
    case CTLCOLOR_EDIT:
      pDC->SetTextColor(RGB(255, 0, 0));
      hbr = (HBRUSH)GetStockObject(WHITE_BRUSH);
      break;

    case CTLCOLOR_STATIC:
      pDC->SetTextColor(RGB(0, 0, 128));
      pDC->SetBkColor(GetSysColor(COLOR_BTNFACE));
      hbr = GetSysColorBrush(COLOR_BTNFACE);
      break;

    case CTLCOLOR_BTN:
      pDC->SetTextColor(RGB(128, 0, 0));
      pDC->SetBkColor(GetSysColor(COLOR_BTNFACE));
      hbr = GetSysColorBrush(COLOR_BTNFACE);
      break;

    case CTLCOLOR_LISTBOX:
      pDC->SetTextColor(RGB(128, 0, 0));
      pDC->SetBkColor(GetSysColor(COLOR_BTNFACE));
      hbr = GetSysColorBrush(COLOR_BTNFACE);
      break;

    default:
      hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
      break;
  }

  return hbr;
}

you can add any MFC functionality manually, or you can use the wizzards . . . doesn't really much matter. . . There are many other settings you can affect from here as well . . .

Perfect Health and Clarity of Mind,

--Victor

[ovidiucucu]

You can manually add your own CTLCOLOR functionality, CWnd supports it.

That doesn't mean "adding your own CTLCOLOR functionality" but mapping a handler function for WM_CTLCOLOR message.

you can add any MFC functionality manually, or you can use the wizzards . . . doesn't really much matter. . . There are many other settings you can affect from here as well . . .

Of course, you can manually map any message but the wizard helps you doing it faster and prevents making mistakes.
What "other settings"?

[OneEyeMan]

Thank you for the reply, guys.
Is there a straight Win32 way - no MFC?

[VictorN]

Thank you for the reply, guys.
Is there a straight Win32 way - no MFC?

Yes. You could implement owner (or custom) drawing for your control.
Or you could try to handle both WM_CTLCOLORLISTBOX and WM_CTLCOLOREDIT messages (sorry, I never did it myself in plain Win32, so I can only guess!(