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VTTRegion

files/en-us/web/api/vttregion/index.md

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{{APIRef("WebVTT")}}

The VTTRegion interface of the WebVTT API describes a portion of the video to render a {{domxref("VTTCue")}} onto.

Constructor

  • {{domxref("VTTRegion.VTTRegion", "VTTRegion()")}}
    • : Returns a newly created VTTRegion object.

Instance properties

  • {{domxref("VTTRegion.id")}}
    • : A string that identifies the region.
  • {{domxref("VTTRegion.width")}}
    • : Represents the width of the region, as a percentage of the video.
  • {{domxref("VTTRegion.lines")}}
    • : Represents the height of the region, in number of lines.
  • {{domxref("VTTRegion.regionAnchorX")}}
    • : Represents the region anchor X offset, as a percentage of the region.
  • {{domxref("VTTRegion.regionAnchorY")}}
    • : Represents the region anchor Y offset, as a percentage of the region.
  • {{domxref("VTTRegion.viewportAnchorX")}}
    • : Represents the viewport anchor X offset, as a percentage of the video.
  • {{domxref("VTTRegion.viewportAnchorY")}}
    • : Represents the viewport anchor Y offset, as a percentage of the video.
  • {{domxref("VTTRegion.scroll")}}
    • : An enum representing how adding a new cue will move existing cues.

Examples

js
const region = new VTTRegion();
region.width = 50; // Use 50% of the video width
region.lines = 4; // Use 4 lines of height.
region.viewportAnchorX = 25; // Have the region start at 25% from the left.
const cue = new VTTCue(2, 3, "Cool text to be displayed");
cue.region = region; // This cue will be drawn only within this region.

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}