#if !defined(IPCERROR)
#define IPCERROR long
#endif

#ifdef __cplusplus
extern "C" {            /* Assume C declarations for C++ */
#endif  /* __cplusplus */

#define IPCERR_NONE             0
#define IPCERR_APPINACTIVE	   -1
#define IPCERR_NOTFOUND 	   -2
#define IPCERR_DLLNOTFOUND	   -3
#define IPCERR_FUNCNOTFOUND    -4
#define IPCERR_INVCOMMAND	   -5
#define IPCERR_NODOC		   -6
#define IPCERR_FUNC 		   -1000
#define IPCERR_INVARG		-7
#define IPCERR_MEMORY		-8
#define IPCERR_BUSY			-9

#if !defined(TRACKFUNC)
#define TRACKFUNC  FARPROC
#endif

#if defined(WIN32)
BOOL WINAPI InitIpc (HWND hWnd, TRACKFUNC TrackFn);
void WINAPI  CloseIpc(void);
short WINAPI ControlIpc(WORD Command, WORD wParam, LONG lParam);
#else
BOOL WINAPI _export InitIpc (HWND hWnd, TRACKFUNC TrackFn);
void WINAPI  _export CloseIpc(void);
short WINAPI _export ControlIpc(WORD Command, WORD wParam, LONG lParam);
#endif

#define IPCCMD_SETMENUSTATE 1

#ifdef __cplusplus
}
#endif  /* __cplusplus */