# fsVarsBVarCall<no value>
The **fsVarsBVarCall** function can be used to call the value of a specific `BVar` and its preset.

 

##### Syntax

``` wasm
FsVarError fsVarsBVarGet(
    FsBVarId bVarId,
    FsVarParamArray param,
    FsObjectId target
);
```

 

##### Parameters

<table><thead><tr class="header"><th>Parameters</th><th>Description</th></tr></thead><tbody><tr class="odd"><td><code>bVarId</code></td><td><p>The ID of a <code>BVar</code> (found using <code>fsVarsGetBVarId</code>).</p></td></tr><tr class="even"><td><code>param</code></td><td>The list of parameters needed to call the <code>BVar</code>. It can contain <code>double</code>, <code>int</code> (which will be converted to a double) or <code>string</code>.</td></tr><tr class="odd"><td><code>target</code></td><td><p>The ID of the object from which the variable is being called.</p></td></tr></tbody></table>

 

##### Return Values

The function returns `FsVarError`, where 0 means there is no error (in which case, the `BVar` preset has been executed).

 

##### Example

``` wasm
FsBVarId BVarSetId = fsVarsGetBVarId("AUXILIARY_SUNSHADE_ADJUST_PILOT_SET", true);
FsVarParamArray param = FsCreateParamArray("i", 1);
FsVarError err = fsVarsBVarCall(BVarSetId, param);
if (err != FS_VAR_ERROR_NONE)
{
    // Error
}
```