CODEWITHSUNDEEP
c++mfcclistctrl
Bogdan Raducan
Bogdan Raducan

Reputation: 177

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

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:

    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;
        }
    }

Upvotes: 3

Views: 2142

Answers (2)

Manu
Manu

Reputation: 1

Digging on the same issue; But I wouldn't go so far as modifying/adding to the default Windows behaviour for painting strings... apparently that would be the endpoint of having it owner-drawn.(aici am murit si eu :).

Upvotes: 0

Nik Bougalis
Nik Bougalis

Reputation: 10613

No, you cannot do this. What you will have to do is custom-draw the text in question. This will be tricky because you will have to do it with two different calls, between which you will have to manually adjust the color and the drawing location to account for the intercharacter spacing etc. And you better hope that you don't need to do multi-line output.

Take a look at the article Neat Stuff to Do in List Controls Using Custom Draw by Michael Dunn on CodeProject to get some ideas on how to proceed.

Alternatively, if you can use the Toolkit Pro toolkit from CodeJock you can leverage their "XAML" support (I use quotes because it's not really XAML, but their own implementation of a subset of XAML) and let them do all the hard work.

Upvotes: 2

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