Can't Get Individual Items To Change Color in a CTreeCtrl

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

JFisher365 - 06 Jun 2004 00:16 GMT

Hello

I am trying to change the color of my CTreeCtrl item text by using the Custom Draw event handler. While I see the correct progression of messages while debugging, I never see the color of the text change. I have included my event handler code...can anyone see a problem? Is there some setting in the resource file that I have to tweak

void CCallLibraryView::OnNMCustomdrawTree1(NMHDR *pNMHDR, LRESULT *pResult

    LPNMCUSTOMDRAW pNMCD = reinterpret_cast<LPNMCUSTOMDRAW>(pNMHDR)

    switch (pNMCD->dwDrawStage

        case CDDS_PREPAINT

            *pResult = CDRF_NOTIFYITEMDRAW
            break


        case CDDS_ITEMPREPAINT

            LPNMTVCUSTOMDRAW pCustomDraw = (LPNMTVCUSTOMDRAW) pNMCD->lItemlParam
            pCustomDraw->clrText = RGB(255,0,0)
            *pResult = CDRF_NEWFONT
            break


        default

            *pResult = CDRF_DODEFAULT
            break



Thanks In Advance
John

Reply to this Message

Jeff Partch [MVP] - 06 Jun 2004 00:45 GMT

> Hello,
>
> I am trying to change the color of my CTreeCtrl item text by using the Custom Draw event handler. While I see the correct progression of messages

while debugging, I never see the color of the text change. I have included
my event handler code...can anyone see a problem?

I think it's this line...

> LPNMTVCUSTOMDRAW pCustomDraw = (LPNMTVCUSTOMDRAW) pNMCD->lItemlParam;

...should that maybe be...

LPNMTVCUSTOMDRAW pCustomDraw = (LPNMTVCUSTOMDRAW) pNMCD;

Signature

Jeff Partch [VC++ MVP]

Reply to this Message

JFisher365 - 06 Jun 2004 01:16 GMT

----- Jeff Partch [MVP] wrote: ----

"JFisher365" <anonymous@discussions.microsoft.com> wrote in messag
news:13107F16-D999-4110-8A1B-30D3CACADEFF@microsoft.com..
> Hello
>> I am trying to change the color of my CTreeCtrl item text by using th
Custom Draw event handler. While I see the correct progression of message
while debugging, I never see the color of the text change. I have include
my event handler code...can anyone see a problem

I think it's this line..

> LPNMTVCUSTOMDRAW pCustomDraw = (LPNMTVCUSTOMDRAW) pNMCD->lItemlParam

....should that maybe be..

LPNMTVCUSTOMDRAW pCustomDraw = (LPNMTVCUSTOMDRAW) pNMCD

--
Jeff Partch [VC++ MVP

That was it. I got confused by the documentation. I wonder why the Add Event Handler wizard would add in it's own code as LPNMCUSTOMDRAW pNMCD = reinterpret_cast<LPNMCUSTOMDRAW>(pNMHDR) instead of the Tree Control specific version. I had looked thru some OnNotify code and it set the LPNMTVCUSTOMDRAW pCustomDraw pointer to the lParam argument. I guess I had assumed that it meant the lItemlParam field of the original pointer

Anyway, thank you for the quick response and great information!!

Joh

Reply to this Message

Can't Get Individual Items To Change Color in a CTreeCtrl

Free Magazines