API Reference > imodeljs-frontend > Views > Viewport > onNeverDrawnChanged onNeverDrawnChanged Beta onNeverDrawnChanged: BeEvent<(vp: Viewport) => void> = new BeEvent<(vp: Viewport) => void>() Event called on the next frame after this viewport's set of never-drawn elements changes. Defined in core/frontend/src/Viewport.ts Line 595 Last Updated: 13 June, 2024