Lines Matching refs:OffscreenCanvas

1 #  OffscreenCanvas  chapter
3 **OffscreenCanvas** provides an offscreen canvas for drawing.
5 …anvas animations and rendering may affect application performance. **OffscreenCanvas** allows for …
17 OffscreenCanvas(width: number, height: number, unit?: LengthMetricsUnit)
31 …s-arkui-graphics.md#lengthmetricsunit12) | No  |  Unit mode of the **OffscreenCanvas** object. The…
57   private offCanvas: OffscreenCanvas = new OffscreenCanvas(200, 300)
93   private offCanvas: OffscreenCanvas = new OffscreenCanvas(200, 300)
149   private offCanvas: OffscreenCanvas = new OffscreenCanvas(300, 500)
209   private offscreenCanvas: OffscreenCanvas = new OffscreenCanvas(600, 800)
255 Since API version 11, an application can call **postMessage** to pass an **OffscreenCanvas** instan…
259 > After the **OffscreenCanvas** instance uses **getContext** to obtain the drawing context, it cann…
261 > After an **OffscreenCanvas** object is passed to a thread through **postMessage**, it cannot use …
263 > After an **OffscreenCanvas** object is passed to a thread through **postMessage**, it cannot be p…
287             let offCanvas = new OffscreenCanvas(600, 800)
305 After the main thread sends the **OffscreenCanvas** instance through **postMessage**, the worker th…
310     let offCanvas: OffscreenCanvas = e.data.myOffCanvas