TREEVIEW_UpdateScrollBars() now copes with an empty tree.

292d8429 · Adam Gundy · Alexandre Julliard · d4fcc4bd · 292d8429
Commit 292d8429 authored Mar 06, 2003 by Adam Gundy Committed by Alexandre Julliard Mar 06, 2003
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treeview.c dlls/comctl32/treeview.c +9 -0

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--- a/dlls/comctl32/treeview.c
+++ b/dlls/comctl32/treeview.c
@@ -2690,6 +2690,8 @@ TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
    if (vert)
    {
 	si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
+       if ( si.nPage )
+       {
           si.nPos  = infoPtr->firstVisible->visibleOrder;
           si.nMax  = infoPtr->maxVisibleOrder - 1;

@@ -2705,6 +2707,13 @@ TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
               ShowScrollBar(hwnd, SB_VERT, FALSE);
           infoPtr->uInternalStatus &= ~TV_VSCROLL;
       }
+    }
+    else
+    {
+	if (infoPtr->uInternalStatus & TV_VSCROLL)
+	    ShowScrollBar(hwnd, SB_VERT, FALSE);
+	infoPtr->uInternalStatus &= ~TV_VSCROLL;
+    }

    if (horz)
    {