+#if TARGET_API_MAC_OSX
+ if ( !wxIsMainThread() )
+ {
+ CFStringRef defaultButtonTitle = NULL;
+ CFStringRef alternateButtonTitle = NULL;
+ CFStringRef otherButtonTitle = NULL;
+
+ wxMacCFStringHolder cfTitle( msgtitle, m_font.GetEncoding() );
+ wxMacCFStringHolder cfText( msgtext, m_font.GetEncoding() );
+
+ wxMacCFStringHolder cfNoString( m_no.c_str(), m_font.GetEncoding() );
+ wxMacCFStringHolder cfYesString( m_yes.c_str(), m_font.GetEncoding() );
+ wxMacCFStringHolder cfOKString( m_ok.c_str() , m_font.GetEncoding()) ;
+ wxMacCFStringHolder cfCancelString( m_cancel.c_str(), m_font.GetEncoding() );