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Changing the color of dialog box in Tab Ctrl

Posted on 1997-07-15
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Last Modified: 2013-11-20
I am creating a tab ctrl inside a scroll view. I am attaching dialog boxes with different tabs in tab ctrl. I want to have different colors for different scroll views (same color for all dialog boxes in one scroll view). I have  tried following options :
1. catch OnEraseBkgnd in my scroll view.
   When I run the program, I get a flickering of the color specified, and then color changes to standard dialog color.
2. catch OnEraseBkgnd in my scroll view.
   It changes the color only for the dialog area (that is fixed). Remaining area on the view is still in standard dialog color.

Any suggestion on this,
Thanks
Pankaj
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Question by:pankaj012797
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mbhakta earned 100 total points
ID: 1302579
Your question is not very clear as to what you are trying to achieve. But from what you are using to paint the dialog box , you should try OnPaint() inside this function try FillRect() for the client area of that dialog you are trying to change the colour for. If this explaination is not enough to get you going come back with some code.
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Author Comment

by:pankaj012797
ID: 1302580
Hi,
I am putting the code.

// A class derived from CView
int CTabView::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
      if (CView::OnCreate(lpCreateStruct) == -1)
            return -1;
// Create a tab control which is a child window of the CTabView // and whose size will be determined in CTabView::OnSize().
      m_TabCtrl = new CTabCtrl;
      ASSERT(m_TabCtrl);
      if (m_TabCtrl->Create(
            WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS,
            CRect(0, 0, 0, 0), this, ID_TABCTRL) == FALSE)
            return -1;
      // Create all pages for the tab control.
      CreatePages();
      return 0;
}

// --------------------------------------------------------------------------
// CTabView::OnSize
//      
// Size the tab control window (CTabCtrl) so it fits the entire // client area of this view window (CTabView).
// --------------------------------------------------------------------------
void CTabView::OnSize(UINT nType, int cx, int cy)
{
      CView::OnSize(nType, cx, cy);

      m_TabCtrl->MoveWindow(0, 0, cx, cy);
}

// --------------------------------------------------------------------------
// CTabView::OnSetFocus
//      
// The view window will get the input focus when the application is first
// running.  It is a good place to show the first page (dialog box)
// by calling OnTabSelChange() function.
// --------------------------------------------------------------------------
void CTabView::OnSetFocus(CWnd* pOldWnd)
{
      CView::OnSetFocus(pOldWnd);

      OnTabSelChange(NULL, NULL);
}

// --------------------------------------------------------------------------
// CTabView::OnTabSelChanging
//      
// This function will hide the currently visible page in the tab // control (CTabCtrl) so the newly selected page can be shown in // OnTabSelChange().
//
void CTabView::OnTabSelChanging(NMHDR* pnmhdr, LRESULT* pResult)
{
// Call GetCurSel() here will return the index of the page that
// will be hidden soon.  This is NOT the newly selected page when
// OnTabSelChange() is called.
      int sel_index = m_TabCtrl->GetCurSel();
      m_DlgArray[sel_index]->ShowWindow(SW_HIDE);
      *pResult = FALSE;
}

// CTabView::OnTabSelChange
//      
// This function will show the newly selected page in the tab //control.  The page will be sized to the display rectangle of // the tab control.
void CTabView::OnTabSelChange(NMHDR* pnmhdr, LRESULT* pResult)
{
// Get rectangle size of the tab control so we know the position
// and size of the page that will be shown.
      RECT rc;
      m_TabCtrl->GetItemRect (0, &rc);

// Call GetCurSel() will return the index of the page that is //newly selected.  This page will be visible soon.
      int sel_index = m_TabCtrl->GetCurSel();
      m_DlgArray[sel_index]->SetWindowPos (
            NULL,
            rc.left + 5, rc.bottom + 5, 0, 0,
            SWP_NOSIZE | SWP_NOZORDER | SWP_SHOWWINDOW);
      
      // Set input focus to this page.
      m_DlgArray[sel_index]->SetFocus();
}      




// --------------------------------------------------------------------------
// CTabView::CreatePages
//      
// This function creates all pages for the tab control //(CTabCtrl).  The tab text is retrieved from the dialog // template.
// All the created pages will be added to the m_DlgArray so we //know which one to show and hide when a particular tab is // selected.  Pages will be shown
// in the left-to-right order when they are added to the tab //control.  The C++ page objects which are added to the //m_DlgArray will be destroyed in the destructor function of this // view window.
// --------------------------------------------------------------------------
#define       NUM_PAGES 2
void CTabView::CreatePages()
{
      CDialog*      dlg;
      // Create page one and add it to dialog array.
      dlg = new CDialog1;
      ASSERT(dlg);
      m_DlgArray.Add(dlg);
      VERIFY(dlg->Create(IDD_DIALOG1, m_TabCtrl));

      // Create page two and add it to dialog array.
      dlg = new CDialog2;
      ASSERT(dlg);
      m_DlgArray.Add(dlg);
      VERIFY(dlg->Create(IDD_DIALOG2, m_TabCtrl));
// Determine the tab text.  The tab text can be found from the
      // dialog template.
      char str[50];
      TC_ITEM tci;
      tci.mask      = TCIF_TEXT;
      tci.iImage      = -1;
      for (int i = 0; i < NUM_PAGES; i++)
      {      
// Get the caption from dialog template and insert this caption
            // to the tab control.
            dlg = m_DlgArray[i];
            dlg->GetWindowText(str, sizeof(str));
            tci.pszText      = str;
            m_TabCtrl->InsertItem(i, &tci);

// Remove caption from  dialog box because no caption is allowed
            // for pages in the tab control.
            dlg->ModifyStyle(WS_CAPTION, 0);

            dlg->SendMessage(WM_NCACTIVATE, TRUE);
      }
}

// This is the code where I am trying to change the background // color of the view, but I am not successful. Same thing I tried  // in OnEraseBkgnd of dialog box. At that time, it changes the // color of dialog box , not of the complete view
BOOL CTabView::OnEraseBkgnd(CDC* pDC)
{
      CBrush *pOldBrush  = pDC->GetCurrentBrush();
      CBrush newBrush(RGB(255,0,0));
      //pDC->SelectObject(&newBrush);
      CRect rect;
      GetClientRect(&rect);
      pDC->FillRect(rect,&newBrush);
      return 1;
}

I hope, it might help in understanding the problem. Please let me know, if need more clarification.

Thanks for all the help,
Pankaj

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