listview

[Ulrich Czekalla]

This patch prevents a crash in the listview control.

ChangeLog:
    Ulrich Czekalla <ulrich at codeweavers.com>
    Handle case where iterator range contains 0 elements
-------------- next part --------------
Index: dlls/comctl32/listview.c
===================================================================
RCS file: /home/wine/wine/dlls/comctl32/listview.c,v
retrieving revision 1.387
diff -u -w -r1.387 listview.c
--- dlls/comctl32/listview.c	21 Apr 2004 22:25:04 -0000	1.387
+++ dlls/comctl32/listview.c	11 May 2004 04:34:02 -0000
@@ -1109,12 +1109,16 @@
 
 static RANGE iterator_range(ITERATOR* i)
 {
-    RANGE range;
+    RANGE range = { 0, 0 };
 
     if (!i->ranges) return i->range;
 
+    if (DPA_GetPtrCount(i->ranges->hdpa) > 0)
+    {
     range.lower = (*(RANGE*)DPA_GetPtr(i->ranges->hdpa, 0)).lower;
     range.upper = (*(RANGE*)DPA_GetPtr(i->ranges->hdpa, DPA_GetPtrCount(i->ranges->hdpa) - 1)).upper;
+    }
+
     return range;
 }