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Handle the firstVisible item being NULL in 

TREEVIEW_UpdateScrollBars().
oldstable
Steve Lustbader 2004-03-01 23:10:52 +00:00 committed by Alexandre Julliard
parent 939d9ca3f3
commit a752885c3d
1 changed files with 1 additions and 1 deletions
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2
dlls/comctl32/treeview.c
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@ -2599,7 +2599,7 @@ TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
if (vert)
{
si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
if ( si.nPage )
if ( si.nPage && NULL != infoPtr->firstVisible)
{
si.nPos = infoPtr->firstVisible->visibleOrder;
si.nMax = infoPtr->maxVisibleOrder - 1;