Final refactoring and implementation of delayed window deletion logic. Works worse now, but the changes are important and need to be checked in now

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4747 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 8 insertions, 0 deletions

diff --git a/NxWidgets/libnxwidgets/include/ilistbox.hxx b/NxWidgets/libnxwidgets/include/ilistbox.hxx
index 9184f23c8..0eb33bc3b 100644
--- a/NxWidgets/libnxwidgets/include/ilistbox.hxx
+++ b/NxWidgets/libnxwidgets/include/ilistbox.hxx
@@ -102,6 +102,14 @@ namespace NXWidgets
   class IListBox
   {
   public:
+    /**
+     * A virtual destructor is required in order to override the IListBox
+     * destructor.  We do this because if we delete IListBox, we want the
+     * destructor of the class that inherits from IListBox to run, not this
+     * one.
+     */
+
+    virtual ~IListBox(void) { }
 
     /**
      * Add a new option to the widget using default colors.