---
name: "BIS_fnc_help"
type: function
status: ok
groups: ["Diagnostic"]
arma3_since: "0.50"
locality: {"argument": null, "effect": "local", "server_exec": false}
source: https://community.bistudio.com/wiki/BIS_fnc_help
revid: 309386
updated: 2022-05-05T12:04:33Z
---

# BIS_fnc_help

*Function · Diagnostic · Arma 3 v0.50 · introduced in Arma 2 v1.00*

Locality: effect **local**

## Description

Opens the Functions Viewer which lists all functions defined in:
- Arma 2: Functions Library (Also Arma 2: Operation Arrowhead)
- [Arma 3: Functions Library](../topics/Functions_Library.md)
- Take On Helicopters: Functions Library

## Syntax

```sqf
parentDisplay call BIS_fnc_help
```

**Parameters:**

- `parentDisplay`: [Display](../topics/Display.md) - (Optional, default [displayNull](../commands/displayNull.md))

**Returns:** [Nothing](../topics/Nothing.md)

## Examples

### Example 1

```sqf
call BIS_fnc_help;
```

## See also

Arma 3: Functions Viewer

<sub>Source: [BI Community Wiki — BIS fnc help](https://community.bistudio.com/wiki/BIS_fnc_help) (revision 309386).</sub>