# fsVarsGetLVarName<no value>
The **fsVarsGetLVarName** function can be used to retrieve the name of a registered `LVar`.

 

##### Syntax

``` wasm
FsVarError fsVarsGetLVarName(
    FsLVarId lVarId,
    char* buffer,
    int bufferSize
);
```

 

##### Parameters

{{< table-wrapper >}}

| Parameters   | Description                                                                  |
|--------------|------------------------------------------------------------------------------|
| `lVarId`     | The ID of an `LVar` (found using `fsVarsGetLVarId` or `fsVarsRegisterLVar`). |
| `buffer`     | The buffer that will receive the name of the `LVar`, if it exists.           |
| `bufferSize` | The size of the given buffer.                                                |

{{< /table-wrapper >}}


 

##### Return Values

The function returns `FsVarError`, where 0 means there is no error (in which case, the name of the `LVar` has been copied in `buffer`).

 

##### Example

``` wasm
FsUnitId unitId = fsVarsGetUnitId("DEGREES");
FsLVarId lVarId = fsVarsRegisterLVar("Toto");
char buffer[128];
buffer[0] = '\0';
if (fsVarsGetLVarName(lVarId, buffer, sizeof(buffer)) == FS_VAR_ERROR_NONE)
{
    // valid, buffer contains "Toto"
}
else
{
    // error
}
```