Changing color of a specific character in an item in CListCtrl in MFC

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I have a CListCtrl and I need to change the color of A SPECIFIC character/set of characters (which I choose by comparison) from the text of every cell in the list.

I know how to change the color of the entire text of the cell when I find the character/set of characters (by using 'strstr' command), but I can't find an example which shows how to change ONLY the character/set of characters.

Here is a sample of my code:

C++

void Agenda::OnCustomdrawMyList( NMHDR* pNMHDR, LRESULT* pResult )
    {
        NMLVCUSTOMDRAW* pLVCD = (NMLVCUSTOMDRAW*)pNMHDR;

        *pResult = CDRF_DODEFAULT;

        if (CDDS_PREPAINT == pLVCD->nmcd.dwDrawStage)
        {
            *pResult = CDRF_NOTIFYITEMDRAW;
            return;
        }else if (CDDS_ITEMPREPAINT == pLVCD->nmcd.dwDrawStage)
        {
            *pResult = CDRF_NOTIFYSUBITEMDRAW;
            return;
        }else if ( (CDDS_SUBITEM | CDDS_ITEMPREPAINT) == pLVCD->nmcd.dwDrawStage )
        {

            // So right now I am in the stage where a SUBITEM is PREPAINTED

            int nItem = pLVCD->nmcd.dwItemSpec;
            int nSubItem = pLVCD->iSubItem;

            char a[100];
            listControl.GetItemText(nItem,nSubItem,a,100);

            COLORREF textColorFound, textColorDefault;
            textColorDefault = RGB(0,0,0);
            pLVCD->clrText = textColorDefault;

            char* startingFrom;

            if( (startingFrom = strstr(a,filterText)) != NULL ) {
                    // Could I set a pointer here or something like that so
                    //   the coloring could start only from 'startingFrom'
                    //   and stop at 'strlen(filterText)' characters?

                textColorFound = RGB(205,92,92);
                pLVCD->clrText = textColorFound;
            }
            *pResult = CDRF_DODEFAULT;
        }
    }

* listControl is the variable for my CListCtrl
* the other things are pretty self-explanatory

Posted 30-May-13 10:51am

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«_Superman_» · Answer 1 · 2013-05-30T16:27:00

The controls capable of such capability are controls like rich edit control and browser control.
So you need to figure out how to place such controls in a cell of a list control.

Here are some such articles on code project -
Embedding Controls in a ListView[^]
Simple CListCtrl with HyperLink Function[^]
TreeListViewEx Tree, List, and Drag and Drop[^]

Another option would be to create the required text as a bitmap and then show the bitmap in the list control.
Here is an article on using bitmaps with list controls -
Using a Virtual CListCtrl to Display Text and Bitmaps[^]

Jochen Arndt · Answer 2 · 2013-05-30T20:28:00

Besides the options from Solution 1, you can do it inside your custom draw handler by drawing the text of cells that match the criteria there and returning CDRF_SKIPDEFAULT or use owner drawing to draw all cells yourself (implementing DrawItem()).

But both methods require code to draw the cell content in a similar way like Windows does. The resulting code can become quite large when all possible options should be supported: Coloring (selected, hot, inactive, background), text alignment, images (check boxes, icons) and style (classic or themed).

For a simple implementation perform these steps:

Get the cell rect
Clear cell by calling FillSolidRect() with background color
Subtract cell text spacing of 6 pixels from left and right
Draw the text using format flags DT_SINGLELINE | DT_NOPREFIX | DT_VCENTER

Because you want text with multiple colors, you need to call DrawText() multiple times and can't use the alignment and end ellipsis flags but must simulate these formats too.