1. DomName('CanvasRenderingContext2D.createImageData')
  2. DocsEditable()
ImageData createImageData(num sw, num sh)

Source 

@DomName('CanvasRenderingContext2D.createImageData')
@DocsEditable()
ImageData createImageData(num sw, num sh) => wrap_jso(_blink.BlinkCanvasRenderingContext2D.instance.createImageData_Callback_2_(unwrap_jso(this), sw, sh));