Tip: Painting the CToolbar's Parent Window (AfxControlBar)

Wednesday Apr 23rd 2008 by Paresh Chitte
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Learn how to paint the background color (paint entire window) of CToolbarby using the "AfxControBar".

Using the Code

In your application, override OnNotify member function in your CMainFrame to handle the WM_NOTIFY message for painting the AfxControlBar.

In MainFrm.h file, declare the following member variable and member function:

class CMainFrame : public CMDIFrameWnd
{
   .....
   CBrush m_BrushDocBar;

   BOOL OnNotify(WPARAM wParam, LPARAM lParam, LRESULT* pResult);
   .....
}

In MainFrm.cpp, in constructor create a solid brush as follows:

CMainFrame::CMainFrame()
{
   m_BrushDocBar.CreateSolidBrush(RGB(0, 255, 255));
}

In MainFrm.cpp, provide the definition of OnNotify() function as follows:

BOOL CMainFrame::OnNotify(WPARAM wParam,
                          LPARAM lParam,
                          LRESULT* pResult)
{
   LPNMHDR pnmh = (LPNMHDR) lParam;
   if(pnmh->hwndFrom == m_wndToolBar.m_hWnd)
   {
      LPNMTBCUSTOMDRAW lpNMCustomDraw = (LPNMTBCUSTOMDRAW) lParam;
      CRect rect;
      CWnd* pWnd = m_wndToolBar.GetParent();
      TCHAR szClassName[200];
      GetClassName(pWnd->m_hWnd, szClassName, 200);
      CString strTemp = szClassName;
      if(strTemp.Find(_T("AfxControlBar")) >= 0)
      {
         SetClassLong(pWnd->m_hWnd,
                      GCL_HBRBACKGROUND,
                      (LONG)m_BrushDocBar.GetSafeHandle());
      }
   }
   return CMDIFrameWnd::OnNotify(wParam, lParam, pResult);
}
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