#ifdef LATTICE
typedef ULONG(*FPTR) ();

#endif
#ifdef AZTEC_C
typedef VOID(*FPTR) ();

#endif

IMPORT struct IntuitionBase *IntuitionBase;

#define LVOActivateWindow -0x01c2L

VOID __stdargs __saveds myActivateWindow( void);

LONG oldActivateWindow;

STATIC WORD patched = 0;

VOID SafePatch( void)
{
	if (!patched)
	{
		Forbid();	/* I don't expect interrupts to do much intuition */
		oldActivateWindow = (LONG) SetFunction((struct Library *)IntuitionBase, LVOActivateWindow, (FPTR) myActivateWindow);
		Permit();
		patched = 1;
	}
}

VOID SafeRestore( void)
{
	if (patched)
	{
		Forbid();
		(VOID) SetFunction((struct Library *)IntuitionBase, LVOActivateWindow, (FPTR) oldActivateWindow);
		Permit();
		patched = 0;
	}
}