#if _WIN32_WINNT < 0x0600 && !defined(TD_WARNING_ICON)
/////////////////////////////////////////////////////////////////////////
// /// _WIN32_WINNT < 0x0600 && !defined(TD_WARNING_ICON)
//

  #ifdef _WIN32
    #include <pshpack1.h>
  #endif // _WIN32

  typedef HRESULT (CALLBACK *PFTASKDIALOGCALLBACK)(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, LONG_PTR lpRefData);

  enum _TASKDIALOG_FLAGS
  {
      TDF_ENABLE_HYPERLINKS                   = 0x0001,
      TDF_USE_HICON_MAIN                      = 0x0002,
      TDF_USE_HICON_FOOTER                    = 0x0004,
      TDF_ALLOW_DIALOG_CANCELLATION           = 0x0008,
      TDF_USE_COMMAND_LINKS                   = 0x0010,
      TDF_USE_COMMAND_LINKS_NO_ICON           = 0x0020,
      TDF_EXPAND_FOOTER_AREA                  = 0x0040,
      TDF_EXPANDED_BY_DEFAULT                 = 0x0080,
      TDF_VERIFICATION_FLAG_CHECKED           = 0x0100,
      TDF_SHOW_PROGRESS_BAR                   = 0x0200,
      TDF_SHOW_MARQUEE_PROGRESS_BAR           = 0x0400,
      TDF_CALLBACK_TIMER                      = 0x0800,
      TDF_POSITION_RELATIVE_TO_WINDOW         = 0x1000,
      TDF_RTL_LAYOUT                          = 0x2000,
      TDF_NO_DEFAULT_RADIO_BUTTON             = 0x4000,
      TDF_CAN_BE_MINIMIZED                    = 0x8000
  };
  typedef int TASKDIALOG_FLAGS;

  typedef enum _TASKDIALOG_MESSAGES
  {
      TDM_NAVIGATE_PAGE                       = WM_USER + 101,
      TDM_CLICK_BUTTON                        = WM_USER + 102,
      TDM_SET_MARQUEE_PROGRESS_BAR            = WM_USER + 103,
      TDM_SET_PROGRESS_BAR_STATE              = WM_USER + 104,
      TDM_SET_PROGRESS_BAR_RANGE              = WM_USER + 105,
      TDM_SET_PROGRESS_BAR_POS                = WM_USER + 106,
      TDM_SET_PROGRESS_BAR_MARQUEE            = WM_USER + 107,
      TDM_SET_ELEMENT_TEXT                    = WM_USER + 108,
      TDM_CLICK_RADIO_BUTTON                  = WM_USER + 110,
      TDM_ENABLE_BUTTON                       = WM_USER + 111,
      TDM_ENABLE_RADIO_BUTTON                 = WM_USER + 112,
      TDM_CLICK_VERIFICATION                  = WM_USER + 113,
      TDM_UPDATE_ELEMENT_TEXT                 = WM_USER + 114,
      TDM_SET_BUTTON_ELEVATION_REQUIRED_STATE = WM_USER + 115,
      TDM_UPDATE_ICON                         = WM_USER + 116
  } TASKDIALOG_MESSAGES;

  typedef enum _TASKDIALOG_NOTIFICATIONS
  {
      TDN_CREATED                             = 0,
      TDN_NAVIGATED                           = 1,
      TDN_BUTTON_CLICKED                      = 2,
      TDN_HYPERLINK_CLICKED                   = 3,
      TDN_TIMER                               = 4,
      TDN_DESTROYED                           = 5,
      TDN_RADIO_BUTTON_CLICKED                = 6,
      TDN_DIALOG_CONSTRUCTED                  = 7,
      TDN_VERIFICATION_CLICKED                = 8,
      TDN_HELP                                = 9,
      TDN_EXPANDO_BUTTON_CLICKED              = 10
  } TASKDIALOG_NOTIFICATIONS;

  typedef struct _TASKDIALOG_BUTTON
  {
      int     nButtonID;
      PCWSTR  pszButtonText;
  }TASKDIALOG_BUTTON
  ;// //////////////////////////////////////////////////////

  typedef enum _TASKDIALOG_ELEMENTS
  {
      TDE_CONTENT,
      TDE_EXPANDED_INFORMATION,
      TDE_FOOTER,
      TDE_MAIN_INSTRUCTION
  } TASKDIALOG_ELEMENTS;

  typedef enum _TASKDIALOG_ICON_ELEMENTS
  {
      TDIE_ICON_MAIN,
      TDIE_ICON_FOOTER
  } TASKDIALOG_ICON_ELEMENTS;

  #define TD_WARNING_ICON         MAKEINTRESOURCEW(-1)
  #define TD_ERROR_ICON           MAKEINTRESOURCEW(-2)
  #define TD_INFORMATION_ICON     MAKEINTRESOURCEW(-3)
  #define TD_SHIELD_ICON          MAKEINTRESOURCEW(-4)

  enum _TASKDIALOG_COMMON_BUTTON_FLAGS
  {
      TDCBF_OK_BUTTON            = 0x0001,                // selected control return value IDOK
      TDCBF_YES_BUTTON           = 0x0002,                // selected control return value IDYES
      TDCBF_NO_BUTTON            = 0x0004,                // selected control return value IDNO
      TDCBF_CANCEL_BUTTON        = 0x0008,                // selected control return value IDCANCEL
      TDCBF_RETRY_BUTTON         = 0x0010,                // selected control return value IDRETRY
      TDCBF_CLOSE_BUTTON         = 0x0020                 // selected control return value IDCLOSE
  };
  typedef int TASKDIALOG_COMMON_BUTTON_FLAGS;

  struct TASKDIALOGCONFIG
  {
      UINT        cbSize;
      HWND        hwndParent;
      HINSTANCE   hInstance;                              // used for MAKEINTRESOURCE() strings
      TASKDIALOG_FLAGS                dwFlags;            // TASKDIALOG_FLAGS (TDF_XXX) flags
      TASKDIALOG_COMMON_BUTTON_FLAGS  dwCommonButtons;    // TASKDIALOG_COMMON_BUTTON (TDCBF_XXX) flags
      PCWSTR      pszWindowTitle;                         // string or MAKEINTRESOURCE()
      union
      {
          HICON   hMainIcon;
          PCWSTR  pszMainIcon;
      };
      PCWSTR      pszMainInstruction;
      PCWSTR      pszContent;
      UINT        cButtons;
      const TASKDIALOG_BUTTON  *pButtons;
      int         nDefaultButton;
      UINT        cRadioButtons;
      const TASKDIALOG_BUTTON  *pRadioButtons;
      int         nDefaultRadioButton;
      PCWSTR      pszVerificationText;
      PCWSTR      pszExpandedInformation;
      PCWSTR      pszExpandedControlText;
      PCWSTR      pszCollapsedControlText;
      union
      {
          HICON   hFooterIcon;
          PCWSTR  pszFooterIcon;
      };
      PCWSTR      pszFooter;
      PFTASKDIALOGCALLBACK pfCallback;
      LONG_PTR    lpCallbackData;
      UINT        cxWidth;
  }
  ;// //////////////////////////////////////////////////////

  #ifdef _WIN32
    #include <poppack.h>
  #endif // _WIN32

//
// /// _WIN32_WINNT < 0x0600 && !defined(TD_WARNING_ICON)
/////////////////////////////////////////////////////////////////////////
#endif