Casio PA-2400W Software Manual page 41

default:
return (DefWindowProc(hWnd, message, uParam, lParam));
}
return (0);
}
VOID ioProc()
{
int ret;
// ret=iobox_chk( INFINITE);
ret=iobox_chk( 5*1000);
PostMessage( hWnd, WM_USER, ret, 0L);
}
// End of Hello Windows CE program.
41
// Wait for infinite
// Wait for 5 seconds