ExternalTexture

ExternalTexture is an immutable handle to a platform-owned texture stream. Display it with the Image component:

Display a published frame

Image(texture)
    .Fit(ImageFit::Contain)
    .With(Frame{.width = 320.0F, .height = 180.0F})

The handle reports IntrinsicSize() and HasValue(). Platform-specific ExternalTextureSource types publish frames and produce the shared handle; source lifetime and thread rules are documented by each platform header.

Keep layout and pixels separate

External textures are suitable for video, camera, GPU, and other externally updated content. They are distinct from ImageAsset: the platform source owns the changing frame while HuxerUI owns layout and compositing commands.

Texture pixels do not provide an accessible description. Apply Semantics{.role = SemanticRole::Image, .label = ...} to the rendering Image when the content conveys information, or mark decorative output hidden.

API

• Default-constructible ExternalTexture represents no source.
• IntrinsicSize() -> Size.
• HasValue() -> bool.
• Equality compares handle identity.
• Image(ExternalTexture) renders the current frame.

See ExternalTexture integration and Image.