---
url: /flow/guide/scripting-reference/functions/file/tempfilename.md
---

# TempFileName

## Declaration

`Function TempFileName : string`

### Example

```pascal
procedure OnMapEvent(var Value:Variant);
begin
  Value := TempFileName;
end;
```

## Description

Returns a temporary file name (including the path to the windows temp folder). The file name is guaranteed to be unique.