Struct D3d11TextLayerHandle 

pub struct D3d11TextLayerHandle { /* private fields */ }

Available on Windows and crate feature d3d11 only.

Dynamic text drawn into a super::D3d11VideoCompositor scene, obtained via super::D3d11VideoCompositorHandle::add_text_layer — there’s no upstream Pipeline branch feeding this input, only D3d11TextLayerHandle::set_text calls. Not an crate::element::Element — never wired into a Pipeline (no Sink, no bus/topology identity). Named to match D3d11VideoLayerHandle’s family, but it isn’t as thin as the rest of that family: every other *Handle in this crate is a cheap, Clone-able Weak-backed proxy over state it doesn’t own, whereas this one owns a real device/font/frame-pool and does actual GPU work (rasterize + upload) on every set_text call.

Deliberately doesn’t expose VideoRect/VideoFit the way crate::elements::VideoLayer does: unlike video, whose input aspect ratio is arbitrary and must be fit into a caller-chosen box, a rasterized text bitmap’s pixel size is always known exactly the moment its content is decided, so set_text computes and applies the layer’s rect itself from that exact size every time the text changes.

Implementations

impl D3d11TextLayerHandle

pub fn set_text(&self, text: &str) -> Result<(), D3d11TextLayerError>

Rasterizes text and swaps it in as this layer’s frame, resizing the layer’s rect to the new bitmap’s exact pixel size (keeping the top-left position from the last Self::set_position/creation call). Empty (or whitespace/control-only) text hides the layer instead of drawing a zero-size frame.

pub fn set_position(&self, x: i32, y: i32) -> Result<(), D3d11TextLayerError>

Moves this layer’s top-left corner without touching its current size (unaffected until the next Self::set_text call).

pub fn set_opacity(&self, opacity: f32) -> Result<(), D3d11TextLayerError>

pub fn set_z_index(&self, z_index: i32) -> Result<(), D3d11TextLayerError>

pub fn set_visible(&self, visible: bool) -> Result<(), D3d11TextLayerError>