# 6. Studio API Reference | Studio::Bank

FMOD Studio banks contain the metadata and audio sample data required for runtime mixing and playback. Audio sample data may be packed into the same bank as the events which reference it, or it may be packed into separate banks.

Loading:

- Studio::Bank::getLoadingState Retrieves the loading state.
- Studio::Bank::loadSampleData Loads non-streaming sample data for all events in the bank.
- Studio::Bank::unloadSampleData Unloads non-streaming sample data for all events in the bank.
- Studio::Bank::getSampleLoadingState Retrieves the loading state of the samples in the bank.
- Studio::Bank::unload Unloads the bank.

Buses:

- Studio::Bank::getBusCount Retrieves the number of buses in the bank.
- Studio::Bank::getBusList Retrieves a list of the buses in the bank.

Events:

- Studio::Bank::getEventCount Retrieves the number of event descriptions in the bank.
- Studio::Bank::getEventList Retrieves a list of the event descriptions in the bank.

String Table:

- Studio::Bank::getStringCount Retrieves the number of string table entries in the bank.
- Studio::Bank::getStringInfo Retrieves a string table entry.

VCAs:

- Studio::Bank::getVCACount Retrieves the number of VCAs in the bank.
- Studio::Bank::getVCAList Retrieves a list of the VCAs in the bank.

General:

- Studio::Bank::getID Retrieves the GUID.
- Studio::Bank::getPath Retrieves the path.
- Studio::Bank::setUserData Sets the bank user data.
- Studio::Bank::getUserData Retrieves the bank user data.
- Studio::Bank::isValid Checks that the Bank reference is valid.

See Also:

- Studio::System::loadBankFile Loads the metadata of a Studio bank from file.
- Studio::System::loadBankMemory Loads the metadata of a Studio bank from memory.
- Studio::System::loadBankCustom Loads the metadata of a Studio bank using custom read callbacks.
- Studio::System::getBank Retrieves a loaded bank.
- Studio::System::getBankById Retrieves a loaded bank.
- Studio::System::getBankList Retrieves the loaded Banks.

## Studio::Bank::getBusCount

Retrieves the number of buses in the bank.

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    FMOD_RESULT Studio::Bank::getBusCount(
      int *count
    );

    FMOD_RESULT FMOD_Studio_Bank_GetBusCount(
      FMOD_STUDIO_BANK *bank,
      int *count
    );

    RESULT Studio.Bank.getBusCount(
      out int count
    );

    Bank.getBusCount(
      count
    );

count Out
  Bus count.

May be used in conjunction with Studio::Bank::getBusList to enumerate the buses in the bank.

## Studio::Bank::getBusList

Retrieves a list of the buses in the bank.

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    FMOD_RESULT Studio::Bank::getBusList(
      Studio::Bus **array,
      int capacity,
      int *count
    );

    FMOD_RESULT FMOD_Studio_Bank_GetBusList(
      FMOD_STUDIO_BANK *bank,
      FMOD_STUDIO_BUS **array,
      int capacity,
      int *count
    );

    RESULT Studio.Bank.getBusList(
      out Bus[] array
    );

    Bank.getBusList(
      array,
      capacity,
      count
    );

array Out
  Array to receive the list. (Studio::Bus)
capacity
  Capacity of `array`.
count Out Opt
  Number of buses written to `array`.

May be used in conjunction with Studio::Bank::getBusCount to enumerate the buses in the bank.

This function returns a maximum of `capacity` buses from the bank. If the bank contains more than `capacity` buses additional buses will be silently ignored.

## Studio::Bank::getEventCount

Retrieves the number of event descriptions in the bank.

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    FMOD_RESULT Studio::Bank::getEventCount(
      int *count
    );

    FMOD_RESULT FMOD_Studio_Bank_GetEventCount(
      FMOD_STUDIO_BANK *bank,
      int *count
    );

    RESULT Studio.Bank.getEventCount(
      out int count
    );

    Bank.getEventCount(
      count
    );

count Out
  Event description count.

May be used in conjunction with Studio::Bank::getEventList to enumerate the events in the bank.

This function counts the events which were added to the bank by the sound designer. The bank may contain additional events which are referenced by event instruments but were not added to the bank, and those referenced events are not counted.

## Studio::Bank::getEventList

Retrieves a list of the event descriptions in the bank.

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    FMOD_RESULT Studio::Bank::getEventList(
      Studio::EventDescription **array,
      int capacity,
      int *count
    );

    FMOD_RESULT FMOD_Studio_Bank_GetEventList(
      FMOD_STUDIO_BANK *bank,
      FMOD_STUDIO_EVENTDESCRIPTION **array,
      int capacity,
      int *count
    );

    RESULT Studio.Bank.getEventList(
      out EventDescription[] array
    );

    Bank.getEventList(
      array,
      capacity,
      count
    );

array Out
  Array to receive the list. (Studio::EventDescription)
capacity
  Capacity of `array`.
count Out Opt
  Number of event descriptions written to `array`.

This function returns a maximum of `capacity` events from the bank. If the bank contains more than `capacity` events then additional events will be silently ignored.

May be used in conjunction with Studio::Bank::getEventCount to enumerate the events in the bank.

This function retrieves the events which were added to the bank by the sound designer. The bank may contain additional events which are referenced by event instruments but were not added to the bank, and those referenced events are not retrieved.

## Studio::Bank::getID

Retrieves the GUID.

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    FMOD_RESULT Studio::Bank::getID(
      FMOD_GUID *id
    );

    FMOD_RESULT FMOD_Studio_Bank_GetID(
      FMOD_STUDIO_BANK *bank,
      FMOD_GUID *id
    );

    RESULT Studio.Bank.getID(
      out Guid id
    );

    Bank.getID(
      id
    );

id Out
  Bank GUID. (FMOD_GUID)

## Studio::Bank::getLoadingState

Retrieves the loading state.

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    FMOD_RESULT Studio::Bank::getLoadingState(
      FMOD_STUDIO_LOADING_STATE *state
    );

    FMOD_RESULT FMOD_Studio_Bank_GetLoadingState(
      FMOD_STUDIO_BANK *bank,
      FMOD_STUDIO_LOADING_STATE *state
    );

    RESULT Studio.Bank.getLoadingState(
      out LOADING_STATE state
    );

    Bank.getLoadingState(
      state
    );

state Out
  Loading state. (FMOD_STUDIO_LOADING_STATE)

This function may be used to check the loading state of a bank which has been loaded asynchronously using the FMOD_STUDIO_LOAD_BANK_NONBLOCKING flag, or is pending unload following a call to Studio::Bank::unload.

If an asynchronous load failed due to a file error `state` will contain FMOD_STUDIO_LOADING_STATE_ERROR and the return code from this function will be the error code of the bank load function.

See Also: Studio::System::loadBankFile, Studio::System::loadBankMemory, Studio::System::loadBankCustom

## Studio::Bank::getPath

Retrieves the path.

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    FMOD_RESULT Studio::Bank::getPath(
      char *path,
      int size,
      int *retrieved
    );

    FMOD_RESULT FMOD_Studio_Bank_GetPath(
      FMOD_STUDIO_BANK *bank,
      char *path,
      int size,
      int *retrieved
    );

    RESULT Studio.Bank.getPath(
      out string path
    );

    Bank.getPath(
      path,
      size,
      retrieved
    );

path Out Opt
  Buffer to receive the path. (UTF-8 string)
size
  Size of the path buffer in bytes. Must be 0 if `path` is null.
retrieved Out Opt
  Length of the path in bytes, including the terminating null character.

The strings bank must be loaded prior to calling this function, otherwise FMOD_ERR_EVENT_NOTFOUND is returned.

If the path is longer than `size` then it is truncated and this function returns FMOD_ERR_TRUNCATED.

The `retrieved` parameter can be used to get the buffer size required to hold the full path

## Studio::Bank::getSampleLoadingState

Retrieves the loading state of the samples in the bank.

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    FMOD_RESULT Studio::Bank::getSampleLoadingState(
      FMOD_STUDIO_LOADING_STATE *state
    );

    FMOD_RESULT FMOD_Studio_Bank_GetSampleLoadingState(
      FMOD_STUDIO_BANK *bank,
      FMOD_STUDIO_LOADING_STATE *state
    );

    RESULT Studio.Bank.getSampleLoadingState(
      out LOADING_STATE state
    );

    Bank.getSampleLoadingState(
      state
    );

state Out
  Loading state. (FMOD_STUDIO_LOADING_STATE)

May be used for tracking the status of the Studio::Bank::loadSampleData operation.

If Studio::Bank::loadSampleData has not been called for the bank then this function will return FMOD_STUDIO_LOADING_STATE_UNLOADED even though sample data may have been loaded by other API calls.

See also: Studio::Bank::unloadSampleData, Sample Data Loading

## Studio::Bank::getStringCount

Retrieves the number of string table entries in the bank.

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    FMOD_RESULT Studio::Bank::getStringCount(
      int *count
    );

    FMOD_RESULT FMOD_Studio_Bank_GetStringCount(
      FMOD_STUDIO_BANK *bank,
      int *count
    );

    RESULT Studio.Bank.getStringCount(
      out int count
    );

    Bank.getStringCount(
      count
    );

count Out
  String table entry count.

May be used in conjunction with Studio::Bank::getStringInfo to enumerate the string table in a bank.

See Also: strings bank

## Studio::Bank::getStringInfo

Retrieves a string table entry.

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    FMOD_RESULT Studio::Bank::getStringInfo(
      int index,
      FMOD_GUID *id,
      char *path,
      int size,
      int *retrieved
    );

    FMOD_RESULT FMOD_Studio_Bank_GetStringInfo(
      FMOD_STUDIO_BANK *bank,
      int index,
      FMOD_GUID *id,
      char *path,
      int size,
      int *retrieved
    );

    RESULT Studio.Bank.getStringInfo(
      int index,
      out Guid id,
      out string path
    );

    Bank.getStringInfo(
      index,
      id,
      path,
      size,
      retrieved
    );

index
  String table entry index.
id Out Opt
  GUID. (FMOD_GUID)
path Out Opt
  Path. (UTF-8 string)
size
  Size of the path buffer in bytes. Must be 0 if `path` is null.
retrieved Out Opt
  Length of the retrieved path in bytes, including the terminating null character.

May be used in conjunction with Studio::Bank::getStringCount to enumerate the string table in a bank.

If the path is longer than `size` then it is truncated and this function returns FMOD_ERR_TRUNCATED.

The `retrieved` parameter can be used to get the buffer size required to hold the full path

See Also: Strings bank, Studio::System::lookupID, Studio::System::lookupPath

## Studio::Bank::getUserData

Retrieves the bank user data.

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    FMOD_RESULT Studio::Bank::getUserData(
      void **userdata
    );

    FMOD_RESULT FMOD_Studio_Bank_GetUserData(
      FMOD_STUDIO_BANK *bank,
      void **userdata
    );

    RESULT Studio.Bank.getUserData(
      out IntPtr userdata
    );

    Bank.getUserData(
      userdata
    );

userdata Out
  User data set by calling Studio::Bank::setUserData.

## Studio::Bank::getVCACount

Retrieves the number of VCAs in the bank.

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    FMOD_RESULT Studio::Bank::getVCACount(
      int *count
    );

    FMOD_RESULT FMOD_Studio_Bank_GetVCACount(
      FMOD_STUDIO_BANK *bank,
      int *count
    );

    RESULT Studio.Bank.getVCACount(
      out int count
    );

    Bank.getVCACount(
      count
    );

count Out
  VCA count.

May be used in conjunction with Studio::Bank::getVCAList to enumerate the VCAs in a bank.

## Studio::Bank::getVCAList

Retrieves a list of the VCAs in the bank.

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    FMOD_RESULT Studio::Bank::getVCAList(
      Studio::VCA **array,
      int capacity,
      int *count
    );

    FMOD_RESULT FMOD_Studio_Bank_GetVCAList(
      FMOD_STUDIO_BANK *bank,
      FMOD_STUDIO_VCA **array,
      int capacity,
      int *count
    );

    RESULT Studio.Bank.getVCAList(
      out VCA[] array
    );

    Bank.getVCAList(
      array,
      capacity,
      count
    );

array Out
  Array to receive the list. (Studio::VCA)
capacity
  Capacity of `array`.
count Out Opt
  Number of VCAs written to `array`.

May be used in conjunction with Studio::Bank::getVCACount to enumerate the VCAs in a bank.

This function returns a maximum of `capacity` VCAs from the bank. If the bank contains more than `capacity` VCAs additional VCAs will be silently ignored.

## Studio::Bank::isValid

Checks that the Bank reference is valid.

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    bool Studio::Bank::isValid()

    bool FMOD_Studio_Bank_IsValid(FMOD_STUDIO_BANK *bank)

    bool Studio.Bank.isValid()

    Studio.Bank.isValid()

## Studio::Bank::loadSampleData

Loads non-streaming sample data for all events in the bank.

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    FMOD_RESULT Studio::Bank::loadSampleData();

    FMOD_RESULT FMOD_Studio_Bank_LoadSampleData(FMOD_STUDIO_BANK *bank);

    RESULT Studio.Bank.loadSampleData();

    Bank.loadSampleData();

Use this function to preload sample data ahead of time so that the events in the bank can play immediately when started.

This function is equivalent to calling Studio::EventDescription::loadSampleData for all events in the bank, including referenced events.

See Also: Studio::Bank::getSampleLoadingState, Studio::Bank::unloadSampleData, Sample Data Loading

## Studio::Bank::setUserData

Sets the bank user data.

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    FMOD_RESULT Studio::Bank::setUserData(
      void *userdata
    );

    FMOD_RESULT FMOD_Studio_Bank_SetUserData(
      FMOD_STUDIO_BANK *bank,
      void *userdata
    );

    RESULT Studio.Bank.setUserData(
      IntPtr userdata
    );

    Bank.setUserData(
      userdata
    );

userdata
  User data.

See Also: Studio::Bank::getUserData

## Studio::Bank::unload

Unloads the bank.

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    FMOD_RESULT Studio::Bank::unload();

    FMOD_RESULT FMOD_Studio_Bank_Unload(FMOD_STUDIO_BANK *bank);

    RESULT Studio.Bank.unload();

    Bank.unload();

This will destroy all objects created from the bank, unload all sample data inside the bank, and invalidate all API handles referring to the bank.

If the bank was loaded from user-managed memory, e.g. by Studio::System::loadBankMemory with the FMOD_STUDIO_LOAD_MEMORY_POINT mode, then the memory must not be freed until the unload has completed. Poll the loading state using Studio::Bank::getLoadingState or use the FMOD_STUDIO_SYSTEM_CALLBACK_BANK_UNLOAD system callback to determine when it is safe to free the memory.

See Also: Studio::System::loadBankFile, Studio::System::loadBankCustom, Studio::System::setCallback

## Studio::Bank::unloadSampleData

Unloads non-streaming sample data for all events in the bank.

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    FMOD_RESULT Studio::Bank::unloadSampleData();

    FMOD_RESULT FMOD_Studio_Bank_UnloadSampleData(FMOD_STUDIO_BANK *bank);

    RESULT Studio.Bank.unloadSampleData();

    Bank.unloadSampleData();

Sample data loading is reference counted and the sample data will remain loaded until unload requests corresponding to all load requests are made, or until the bank is unloaded. For more details see Sample Data Loading.

See Also: Studio::Bank::loadSampleData