---
title: "callAsFunction(id:)"
framework: swiftui
role: symbol
role_heading: Instance Method
path: "swiftui/pushwindowaction/callasfunction(id:)"
---

# callAsFunction(id:)

Pushes a window that is associated with the specified identifier.

## Declaration

```swift
@MainActor func callAsFunction(id: String)
```

## Parameters

- `id`: The identifier of the scene to present.

## Discussion

Discussion Don’t call this method directly. SwiftUI calls it when you call the pushWindow action with an identifier: pushWindow(id: "viewer") For information about how Swift uses the callAsFunction() method to simplify call site syntax, see Methods with Special Names in The Swift Programming Language.