recipe-180919.py 文件源码

def load(self, drive=''):
        '''Closes cd drive door and waits until cd is readable.'''
        drive = drive or self.drive
        device = self.__getDeviceHandle(drive)
        hdevice = win32file.CreateFile(device, GENERIC_READ,
                                        FILE_SHARE_READ, None, OPEN_EXISTING, 0, 0)
        win32file.DeviceIoControl(hdevice,2967564,"", 0, None)
        win32file.CloseHandle(hdevice)
        # Poll drive for loaded and give up after timeout period
        i=0
        while i < 20:
            if self.__is_cd_inserted(drive) == 1:
                return 1
            else:
                time.sleep(1)
            i = i+1
        return 0