# cocos.audio.SDL.dll module

class `SDL_DLL`(library_name, version_function_name, version=None)

  Bases: `object`

  `assert_version_compatible`(name, since)

    Raises an exception if since is later than the loaded library.

  `function`(name, doc, args=[], arg_types=[], return_type=None, dereference_return=False, require_return=False, success_return=None, error_return=None, since=None)

    Construct a wrapper function for ctypes.

    Parameters: | name The name of the function as it appears in the shared library. doc Docstring to associate with the wrapper function. args List of strings giving the argument names. arg_types List of ctypes classes giving the argument types. return_type The ctypes class giving the wrapped function’s native return type. dereference_return If True, the return value is assumed to be a pointer and will be dereferenced via `.contents` before being returned to the user application. require_return Used in conjunction with dereference_return; if True, an exception will be raised if the result is NULL; if False None will be returned when the result is NULL. success_return If not None, the expected result of the wrapped function. If the return value does not equal success_return, an exception will be raised. error_return If not None, the error result of the wrapped function. If the return value equals error_return, an exception will be raised. Cannot be used in conjunction with success_return. since Tuple (major, minor, patch) or string ‘x.y.z’ of the first version of SDL in which this function appears. If the loaded version predates it, a placeholder function that raises SDL_NotImplementedError will be returned instead. Set to None if the function is in all versions of SDL.

  `private_function`(name, **kwargs)

    Construct a wrapper function for ctypes with internal documentation and no argument names.

  `version_compatible`(v)

    Returns True iff v is equal to or later than the loaded library version.