Implementing CustomDraw into Your Project

Environment: MFC

Here are the steps you need to perform to use this utility:

  1. Create the MFC project with view as ListView.
  2. Apply styles to the view .cpp file.
  3.   BOOL CMyListView::PreCreateWindow(CREATESTRUCT& cs)
      {
        //adding styles
        cs.style |= LVS_REPORT;
        return CListView::PreCreateWindow(cs);
      }
    
  4. Add columns to the view .cpp file.
  5.   void CMyListView::OnInitialUpdate()
      {
        CListView::OnInitialUpdate();
    
        CListCtrl& ListCtrl = GetListCtrl();
    
        //inserting 5 cols
        ListCtrl.InsertColumn(0, "Col-1", LVCFMT_LEFT, 75);
        ListCtrl.InsertColumn(1, "Col-2", LVCFMT_LEFT, 100);
        ListCtrl.InsertColumn(2, "Col-3", LVCFMT_LEFT, 100);
        ListCtrl.InsertColumn(3, "Col-4", LVCFMT_LEFT, 100);
        ListCtrl.InsertColumn(4, "Col-5", LVCFMT_LEFT, 100);
    
        //adding 10 items
        CString item;
        for(int i=0;i<10;i++)
        {
          item.Format("Item-%d",i);
          ListCtrl.InsertItem(i,item);
        }
      }
    
  6. Add the following line to the message map area of the view header(.h) file.
  7.     afx_msg void OnCustomDraw(NMHDR* pNMHDR, LRESULT*
                                  pResult);
    
  8. Add the following line to the message map area of the view .cpp file.
  9.     ON_NOTIFY_REFLECT(NM_CUSTOMDRAW, OnCustomDraw)
    
  10. Add the OnCustomDraw function.
  11.         void CMyListView::OnCustomDraw(NMHDR* pNMHDR,
                                           LRESULT* pResult)
            {
             *pResult = 0;
    
               COLORREF dwColourTxt = 0;
               COLORREF dwColourBk = RGB(255, 255, 255);
    
               LPNMLVCUSTOMDRAW  lplvcd = (LPNMLVCUSTOMDRAW)pNMHDR;
    
               switch(lplvcd->nmcd.dwDrawStage)
               {
                  Case CDDS_PREPAINT:
                  {
                     *pResult = CDRF_NOTIFYITEMDRAW;
                     return;
                  }
    
                  // Modify item text and or background
                  Case CDDS_ITEMPREPAINT:
                  {
                     if(lplvcd->nmcd.dwItemSpec == 0)
                     {
                        dwColourTxt = RGB(255, 0, 0);     // Red
                     }
                     else if(lplvcd->nmcd.dwItemSpec == 1)
                     {
                        dwColourTxt = RGB(0, 255, 0);     // Green
                     }
                     Else
                     {
                        dwColourTxt = RGB(0, 0, 255);     // Blue
                     }
                     lplvcd->clrText = dwColourTxt;
                     // If you want the sub items the same as
                     // the item, set *pResult to CDRF_NEWFONT
                     *pResult = CDRF_NOTIFYSUBITEMDRAW;
                     return;
                  }
    
                  // Modify sub item text and or background
                  case CDDS_SUBITEM | CDDS_PREPAINT | CDDS_ITEM:
                  {
                     // Ignore the first sub item; it is the item
                     // handled above
                     if(lplvcd->iSubItem != 0)
                     {
                        // First sub item
                        if(lplvcd->iSubItem == 1)
                        {
                           dwColourTxt = RGB(0, 127, 127);
                                         // Pale blue
                           dwColourBk = RGB(255, 255, 255);
                                         // White
                        }
                        // All sub items after the first
                        Else
                        {
                           dwColourTxt = RGB(255, 255, 255);
                                       // White
                           if(lplvcd->nmcd.dwItemSpec == 0)
                           {
                              dwColourBk = RGB(255, 0, 102);
                                       // Red
                           }
                           else if(lplvcd->nmcd.dwItemSpec == 1)
                           {
                              dwColourBk = RGB(204, 255, 153);
                                       // Green
                           }
                           Else
                           {
                              dwColourBk = RGB(0, 102, 204);
                                       // Blue
                           }
                        }
                        lplvcd->clrText = dwColourTxt;
                        lplvcd->clrTextBk = dwColourBk;
                     }
                     *pResult = CDRF_NEWFONT;
                     return;
                  }
               }
            }
    

Downloads

Download source - 19 Kb


Comments

Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • Live Event Date: October 29, 2014 @ 11:00 a.m. ET / 8:00 a.m. PT Are you interested in building a cognitive application using the power of IBM Watson? Need a platform that provides speed and ease for rapidly deploying this application? Join Chris Madison, Watson Solution Architect, as he walks through the process of building a Watson powered application on IBM Bluemix. Chris will talk about the new Watson Services just released on IBM bluemix, but more importantly he will do a step by step cognitive …

  • A majority of organizations are operating under the assumption that their network has already been compromised, or will be, according to a survey conducted by the SANS Institute. With many high profile breaches in 2013 occurring on endpoints, interest in improving endpoint security is top-of-mind for many information security professionals. The full results of the inaugural SANS Endpoint Security Survey are summarized in this white paper to help information security professionals track trends in endpoint …

Most Popular Programming Stories

More for Developers

Latest Developer Headlines

RSS Feeds