TREEVIEW_DoSelectItem should not do any of the TVGN_FIRSTVISIBLE work

if the newSelect parameter is NULL.

diff --git a/dlls/comctl32/treeview.c b/dlls/comctl32/treeview.c
index 640f86a0c328add219e6ff9b5a72a7e46253a391..b13c8aa0317a39326fb3c74305f9071a56f402f2 100644 (file)
--- a/dlls/comctl32/treeview.c
+++ b/dlls/comctl32/treeview.c
@@ -4242,9 +4242,12 @@ TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
        break;
 
     case TVGN_FIRSTVISIBLE:
-       TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
-       TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
-       TREEVIEW_Invalidate(infoPtr, NULL);
+       if (newSelect != NULL)
+       {
+           TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
+           TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
+           TREEVIEW_Invalidate(infoPtr, NULL);
+       }
        break;
     }