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## src_c/mixer.c

Python types and module startup/shutdown functions defined in the `pygame.mixer` pygame module for loading and playing sounds extension module.

Header file: src_c/mixer.h

`pgSoundObject`

  The `pygame.mixer.Sound` instance C structure.

PyTypeObject *`pgSound_Type`

  The `pygame.mixer.Sound` Python type.

PyObject* `pgSound_New`(Mix_Chunk *chunk)

  Return a new `pygame.mixer.Sound` instance for the SDL mixer chunk chunk. On failure, raise a Python exception and return `NULL`.

int `pgSound_Check`(PyObject *obj)

  Return true if obj is an instance of type `pgSound_Type`, but not a `pgSound_Type` subclass instance. A macro.

Mix_Chunk* `pgSound_AsChunk`(PyObject *x)

  Return the SDL `Mix_Chunk` struct associated with the `pgSound_Type` instance x. A macro that does no `NULL` or Python type check on x.

`pgChannelObject`

  The `pygame.mixer.Channel` instance C structure.

PyTypeObject *`pgChannel_Type`

  The `pygame.mixer.Channel` Python type.

PyObject* `pgChannel_New`(int channelnum)

  Return a new `pygame.mixer.Channel` instance for the SDL mixer channel channelnum. On failure, raise a Python exception and return `NULL`.

int `pgChannel_Check`(PyObject *obj)

  Return true if obj is an instance of type `pgChannel_Type`, but not a `pgChannel_Type` subclass instance. A macro.

Mix_Chunk *`pgChannel_AsInt`(PyObject *x)

  Return the SDL mixer music channel number associated with `pgChannel_Type` instance x. A macro that does no `NULL` or Python type check on x.

void `pgMixer_AutoInit`(void)

  Initialize the `pygame.mixer` module and start the SDL mixer.

void `pgMixer_AutoQuit`(void)

  Stop all playing channels and close the SDL mixer.

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