reference_trigger.py 文件源码

def anlg_edge_slope(self):
        """
        :class:`nidaqmx.constants.Slope`: Specifies on which slope of
            the source signal the Reference Trigger occurs.
        """
        val = ctypes.c_int()

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

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

        return Slope(val.value)