reference_trigger.py 文件源码

def delay(self):
        """
        float: Specifies in seconds the time to wait after the device
            receives the Reference Trigger before switching from
            pretrigger to posttrigger samples.
        """
        val = ctypes.c_double()

        cfunc = lib_importer.windll.DAQmxGetRefTrigDelay
        if cfunc.argtypes is None:
            with cfunc.arglock:
                if cfunc.argtypes is None:
                    cfunc.argtypes = [
                        lib_importer.task_handle,
                        ctypes.POINTER(ctypes.c_double)]

        error_code = cfunc(
            self._handle, ctypes.byref(val))
        check_for_error(error_code)

        return val.value