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# CMTextDisplayFlags

An integer value that describes the display mode flags for text media.

```
typealias CMTextDisplayFlags = UInt32
```

## Topics

### Constants

[`kCMTextDisplayFlag_scrollIn`](/documentation/CoreMedia/kCMTextDisplayFlag_scrollIn)

A flag that describes the text scrolls into the display region.

[`kCMTextDisplayFlag_scrollOut`](/documentation/CoreMedia/kCMTextDisplayFlag_scrollOut)

A flag that describes the text scrolls out of the display region.

[`kCMTextDisplayFlag_scrollDirectionMask`](/documentation/CoreMedia/kCMTextDisplayFlag_scrollDirectionMask)

A flag that describes the scrolling direction is set by a two-bit field, obtained from displayFlags using kCMTextDisplayFlag_scrollDirectionMask.

[`kCMTextDisplayFlag_scrollDirection_bottomToTop`](/documentation/CoreMedia/kCMTextDisplayFlag_scrollDirection_bottomToTop)

A flag that describes the text is vertically scrolled up (“credits style”), entering from the bottom and leaving towards the top.

[`kCMTextDisplayFlag_scrollDirection_rightToLeft`](/documentation/CoreMedia/kCMTextDisplayFlag_scrollDirection_rightToLeft)

A flag that describes the text is horizontally scrolled (“marquee style”), entering from the right and leaving towards the left.

[`kCMTextDisplayFlag_scrollDirection_topToBottom`](/documentation/CoreMedia/kCMTextDisplayFlag_scrollDirection_topToBottom)

A flag that describes the text is vertically scrolled down, entering from the top and leaving towards the bottom.

[`kCMTextDisplayFlag_scrollDirection_leftToRight`](/documentation/CoreMedia/kCMTextDisplayFlag_scrollDirection_leftToRight)

A flag that describes the text is horizontally scrolled, entering from the left and leaving towards the right.

[`kCMTextDisplayFlag_continuousKaraoke`](/documentation/CoreMedia/kCMTextDisplayFlag_continuousKaraoke)

A flag that describes enabling the continuous karaoke mode where the range of karaoke highlighting extends to include additional ranges rather than the highlighting moves onto the next range.

[`kCMTextDisplayFlag_writeTextVertically`](/documentation/CoreMedia/kCMTextDisplayFlag_writeTextVertically)

A flag that describes the text renders vertically.

[`kCMTextDisplayFlag_fillTextRegion`](/documentation/CoreMedia/kCMTextDisplayFlag_fillTextRegion)

A flag that describes the subtitle display bounds are to be filled with the color specified by `kCMTextFormatDescriptionExtension_BackgroundColor`.

[`kCMTextDisplayFlag_forcedSubtitlesPresent`](/documentation/CoreMedia/kCMTextDisplayFlag_forcedSubtitlesPresent)

A flag that describes forcing subtitles are present, for example, a subtitle which only displays during foreign language sections of the video. Check individual samples to determine what type of subtitle is contained.

[`kCMTextDisplayFlag_allSubtitlesForced`](/documentation/CoreMedia/kCMTextDisplayFlag_allSubtitlesForced)

A flag that describes treating all subtitle samples as if they contain forced subtitles.


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