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(mozilla-projects-nss-reference-fc-getobjectsize)=

# FC_GetObjectSize

## [Name](#name)

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FC_GetObjectSize - create a copy of an object.

:::

## [Syntax](#syntax)

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```{code}

CK_RV FC_GetObjectSize(

  CK_SESSION_HANDLE hSession,

  CK_OBJECT_HANDLE hObject,

  CK_ULONG_PTR pusSize

);

```

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## [Parameters](#parameters)

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`hSession`

: [in] session handle.

`hObject`

: [in] object handle.

`pusSize`

: [out] pointer to location to receive the object's size.

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## [Description](#description)

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`FC_GetObjectSize` gets the size of an object in bytes.

A user must log into the token (to assume the NSS User role) before getting the size of a secret

or private key object.

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## [Return value](#return_value)

## [Examples](#examples)

## [See also](#see_also)

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- [NSC_GetObjectSize](/en-US/NSC_GetObjectSize)

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