TREEVIEW: fix if firstVisible is null

Steve Lustbader slustbader at verizon.net
Sun Feb 29 15:00:34 CST 2004


This fixes an error I encounted in MX-Editor on startup.  

ChangeLog:
 * Handle the firstVisible item being NULL in TREEVIEW_UpdateScrollBars().

Index: dlls/comctl32/treeview.c
===================================================================
RCS file: /home/wine/wine/dlls/comctl32/treeview.c,v
retrieving revision 1.144
diff -u -r1.144 treeview.c
--- dlls/comctl32/treeview.c    16 Feb 2004 22:19:29 -0000      1.144
+++ dlls/comctl32/treeview.c    29 Feb 2004 20:52:56 -0000
@@ -2599,7 +2599,7 @@
     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;





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