From 9047a3c13904c27ad4aa3821197d8e8caefd0347 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Tue, 23 May 2000 06:01:58 +0000
Subject: [PATCH] fix for crash in wxTreeCtrl::GetSelections() when the tree is
 empty

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@7463 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/generic/treectrl.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/generic/treectrl.cpp b/src/generic/treectrl.cpp
index 59a20f9274..61b300f070 100644
--- a/src/generic/treectrl.cpp
+++ b/src/generic/treectrl.cpp
@@ -1407,14 +1407,19 @@ void wxTreeCtrl::FillArray(wxGenericTreeItem *item,
         wxArrayGenericTreeItems& children = item->GetChildren();
         size_t count = children.GetCount();
         for ( size_t n = 0; n < count; ++n )
-            FillArray(children[n],array);
+            FillArray(children[n], array);
     }
 }
 
 size_t wxTreeCtrl::GetSelections(wxArrayTreeItemIds &array) const
 {
   array.Empty();
-  FillArray(GetRootItem().m_pItem, array);
+  wxTreeItemId idRoot = GetRootItem();
+  if ( idRoot.IsOk() )
+  {
+      FillArray(idRoot.m_pItem, array);
+  }
+  //else: the tree is empty, so no selections
 
   return array.Count();
 }