Forum

Hi, I’ve got several toolbar combo’s based on the Style Editor sample app and I want to update the combo current selection (font name/size etc.) as the user moves around in the text. My only problem is getting the combo to redraw efficiently.

I’ve added the following OnUpdatexxx:

void CFMNView::OnUpdateGenericEditRedraw(CCmdUI* pCmdUI)
{
pCmdUI->Enable( Editing() );

// Force Toolbar Combo to show correct Style.
pMainFrame()->CExtCustomizeSite::RedrawCommandItems( pCmdUI->m_nID );
}

which works, however with three toolbar combos (ie. 3 calls to RedrawCommandItems()) it slows down my app considerably. So what is the best, most efficient way of doing this.

I’d also like to only update the respective combo’s if the selection actually needs changing (eg. caret is on text which is a different size to combo).

Thanks,
Neville

Dear Neville,

The following code seems to be a solution to what you need:

CExtCustomizeSite::RedrawCommandItems(nID0, false) CExtCustomizeSite::RedrawCommandItems(nID1, false)

. . .

CExtCustomizeSite::RedrawCommandItems(nIDN, false) CExtCustomizeSite::UpdateAllCommandItems();

That should increase the speed.