--- a/src/mdtv_tooltipwin.h
+++ b/src/mdtv_tooltipwin.h
@@ -1,5 +1,6 @@
 #ifndef __MDOLPHIN_TOOLTIPWIN_H__
 #define __MDOLPHIN_TOOLTIPWIN_H__
+#define MINIGUI_V3 1
 int mdolphin_ToolTipWinProc (HWND hWnd, int message, WPARAM wParam, LPARAM lParam);
 
 HWND mdolphin_createToolTipWin (HWND hParentWnd, int x, int y, int timeout_ms, 
--- a/src/mdtv_tooltipwin.cpp
+++ b/src/mdtv_tooltipwin_new.cpp
@@ -22,6 +22,7 @@
 #include <minigui/window.h>
 #include <minigui/control.h>
 #include <mdolphin/mdolphin.h>
+#include "mdtv_tooltipwin.h"

 #ifdef MINIGUI_V3
 #include <mgutils/mgutils.h>
@@ -41,7 +42,7 @@
         ShowWindow(hwnd, SW_HIDE);
 }

-static int mdolphin_ToolTipWinProc (HWND hWnd, int message, WPARAM wParam, LPARAM lParam)
+int mdolphin_ToolTipWinProc (HWND hWnd, int message, WPARAM wParam, LPARAM lParam)
 {
     switch (message)
     {