Stream of webglcontextlost
events handled by this CanvasElement.
ElementStream<gl.ContextEvent> get onWebGlContextLost => webGlContextLostEvent.forElement(this);
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Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.5.0/dart-html/CanvasElement/onWebGlContextLost.html