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# SCWindow

An instance that represents an onscreen window.

```
class SCWindow
```

## Overview

Retrieve the available windows from an instance of [`SCShareableContent`](/documentation/ScreenCaptureKit/SCShareableContent). Select one or more windows to capture and use them to create an instance of [`SCContentFilter`](/documentation/ScreenCaptureKit/SCContentFilter). Apply the filter to an instance of [`SCStream`](/documentation/ScreenCaptureKit/SCStream) to limit its output to content matching your criteria.

## Topics

### Identifying windows

[`windowID`](/documentation/ScreenCaptureKit/SCWindow/windowID)

The Core Graphics window identifier.

[`title`](/documentation/ScreenCaptureKit/SCWindow/title)

The string that displays in a window’s title bar.

[`owningApplication`](/documentation/ScreenCaptureKit/SCWindow/owningApplication)

The app that owns the window.

[`windowLayer`](/documentation/ScreenCaptureKit/SCWindow/windowLayer)

The layer of the window relative to other windows.

### Accessing dimensions

[`frame`](/documentation/ScreenCaptureKit/SCWindow/frame)

A rectangle the represents the frame of the window within a display.

### Determining visibility

[`isOnScreen`](/documentation/ScreenCaptureKit/SCWindow/isOnScreen)

A Boolean value that indicates whether the window is on screen.

[`isActive`](/documentation/ScreenCaptureKit/SCWindow/isActive)

A Boolean value that indicates if the window is currently streaming.


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