Listview mousewheel fix

[Rein Klazes <rklazes@xs4all.nl>]

Hi,

(cc'd to Dimitri)
Make wheelmouse work again.

Changelog:
	dlls/comctl32/	: listview.c
	Fix for listview wheelmouse message handling.

Rein.	 
-- 
Rein Klazes
rklazes@xs4all.nl
--- wine/dlls/comctl32/listview.c	2002-10-29 13:37:51.000000000 +0100
+++ mywine/dlls/comctl32/listview.c	2002-10-29 17:34:28.000000000 +0100
@@ -7325,22 +7325,16 @@
         *  listview should be scrolled by a multiple of 37 dependently on its dimension or its visible item number
         *  should be fixed in the future.
         */
-        if (GetScrollInfo(infoPtr->hwndSelf, SB_VERT, &scrollInfo))
-            LISTVIEW_VScroll(infoPtr, SB_THUMBPOSITION,
-			     scrollInfo.nPos + (gcWheelDelta < 0) ?
-			     LISTVIEW_SCROLL_ICON_LINE_SIZE :
-			     -LISTVIEW_SCROLL_ICON_LINE_SIZE, 0);
+        LISTVIEW_VScroll(infoPtr, SB_INTERNAL, (gcWheelDelta < 0) ?
+                LISTVIEW_SCROLL_ICON_LINE_SIZE : -LISTVIEW_SCROLL_ICON_LINE_SIZE, 0);
         break;
 
     case LVS_REPORT:
         if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
         {
-            if (GetScrollInfo(infoPtr->hwndSelf, SB_VERT, &scrollInfo))
-            {
-                int cLineScroll = min(LISTVIEW_GetCountPerColumn(infoPtr), pulScrollLines);
-                cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
-                LISTVIEW_VScroll(infoPtr, SB_THUMBPOSITION, scrollInfo.nPos + cLineScroll, 0);
-            }
+            int cLineScroll = min(LISTVIEW_GetCountPerColumn(infoPtr), pulScrollLines);
+            cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
+            LISTVIEW_VScroll(infoPtr, SB_INTERNAL, cLineScroll, 0);
         }
         break;