Re: CListCtrl flickering using EnsureVisible

From:

"AliR $VC++ MVP$" <AliR@online.nospam>

Newsgroups:

microsoft.public.vc.mfc

Date:

Mon, 17 Nov 2008 09:30:20 -0600

Message-ID:

<S6gUk.6352$as4.6240@nlpi069.nbdc.sbc.com>

I'm not sure what the maximum capacity of a list control is. But I must say
that if you are planing on displaying a large number of items, you might
want to look into using the the list control in Vitrual mode.

http://msdn.microsoft.com/en-us/library/ye4z8x58(VS.80).aspx

AliR.

"Gary" <Gary@discussions.microsoft.com> wrote in message
news:11E3DD00-553B-45E6-AF09-41CE56A8B9F7@microsoft.com...

Lock and UnLock seem to be better than Redraw but I still see some minor
flickering........

Regarding RedrawItems......I was just trying to redraw portion of
items...but it was not useful...........

What else can I do to reduce the flickering ?.....
also CListCtrl supports upto 100million items right ?

"AliR (VC++ MVP)" wrote:

I haven't had much luck with SetRedraw when it comes to List controls.
But
I have had better luck with LockWindowUpdate and UnlockWindowUpdate.

BTW, why are you calling RedrawItems???

AliR.

"Gary" <Gary@discussions.microsoft.com> wrote in message
news:B5A83A4C-A39F-4DB9-BFE5-CBA659173BA0@microsoft.com...

Hi,

I am experiencing a problem with CListCtrl used in a form view.....
I see that it flickers...........

I am using EnsureVisible to see the last added items and I am using
Redraw
items and SetRedraw to avoid flickering but nothing seems to be
working..........

incomingData.SetRedraw( FALSE );
incomingData.InsertItem( mItemsCount, _T("") );
incomingData.SetItemText( mItemsCount, 0, inData );

if (mItemsCount > 15)
{
incomingData.RedrawItems( mItemsCount - 15, mItemsCount );
incomingData.EnsureVisible( mItemsCount - 15, TRUE );
}

mItemsCount++;
incomingData.SetRedraw( TRUE );

Did anyone experience similar behavior ?
If so can you please tell me what else can be done to avoid flickering
?