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filter out garbage Windows sends us via LVN_ODCACHEHINT

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11115 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2001-07-20 01:00:21 +00:00
parent 614391dc08
commit e623926d63
1 changed files with 16 additions and 2 deletions
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16
src/msw/listctrl.cpp
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@ -1621,8 +1621,22 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
const NM_CACHEHINT *cacheHint = (NM_CACHEHINT *)lParam;
eventType = wxEVT_COMMAND_LIST_CACHE_HINT;
// we get some really stupid cache hints like ones for items in
// range 0..0 for an empty control or, after deleting an item,
// for items in invalid range - filter this garbage out
if ( cacheHint->iFrom < cacheHint->iTo )
{
event.m_oldItemIndex = cacheHint->iFrom;
event.m_itemIndex = cacheHint->iTo;
long iMax = GetItemCount();
event.m_itemIndex = cacheHint->iTo < iMax ? cacheHint->iTo
: iMax - 1;
}
else
{
return FALSE;
}
}
break;