Ownerdraw CHeaderCtrl

[Teknodude]

Hello all,

Can anyone give me some guidance as to implementing an ownerdraw header
control. I currently have an owner draw CListCtrl and I would like to alter
the appearance of the header (Different font and background color). Any
ideas would be appreciated. I've checked www.codeguru.com, but to no avail.

Thanks in advance,
Greg.

[Saso Marucelj]

Teknodude <tekn...@hotmail.com> wrote in message
news:#KHM11Zd#GA.199@cppssbbsa03...

As first you should get header control and set its flags to 'owner-draw'...

// Declare something like this somewhere and initialize it...
CHeaderCtrl *m_pHeaderCtrl;

...

// Initialization part - this code can be called from OnCreate or some
similar function...
if (GetStyle() & LVS_REPORT)
{
// Then get header control...
CHeaderCtrl *listHeader = (CHeaderCtrl*)GetWindow(GW_CHILD);

if (listHeader)
{
// ...create your own header and attach it to the header control of
the list...
int nCol = listHeader->GetItemCount();
HD_ITEM hdrItem;

m_pHeaderCtrl = new CHeaderCtrl();
m_pHeaderCtrl->Attach(listHeader->m_hWnd);

for (int i = 0; i < nCol; i++)
{
hdrItem.mask = HDI_FORMAT;

if (m_pHeaderCtrl->GetItem(i, &hdrItem))
{
// Finally, add owner-draw flag to all or just to headers
you would like to customize...
hdrItem.fmt |= HDF_OWNERDRAW;
m_pHeaderCtrl->SetItem(i, &hdrItem);
}
}
}
}

...

You must also override OnDrawItem and do some 'owner' drawing...

...

void CSomeListCtrl::OnDrawItem(int nIDCtl, LPDRAWITEMSTRUCT
lpDrawItemStruct)
{
if ((lpDrawItemStruct->CtlType == ODT_HEADER) && m_pHeaderCtrl)
{
CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);

// Handle state of the header bar
if (lpDrawItemStruct->itemState & ODS_SELECTED)
{
// Draw some stuff here...
}
else if (lpDrawItemStruct->itemState &
ODS_SOMETHING_ELSE_I_DONT_REMEMBER)
{
// ...and/or here...
}
else ...

...

}
}

P.S. Don't forget to detach and delete m_pHeaderCtrl at the end
(OnDestroy)...

I hope this helps, Saso.

[Teknodude]

Thanks,

I'll give it a try.

Greg.

[Anatoly Ivasyuk]

"Teknodude" <tekn...@hotmail.com> wrote:

>Can anyone give me some guidance as to implementing an ownerdraw header
>control. I currently have an owner draw CListCtrl and I would like to alter
>the appearance of the header (Different font and background color). Any
>ideas would be appreciated. I've checked www.codeguru.com, but to no avail.

Check codeguru.com again, under the Advanced UI section, the CJ60Lib
extension library includes an owner-draw header control.

-Anatoly

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