履歴: CanvasRenderingContext2D.addHitRegion() 改訂履歴: English (US) 日本語 2015/01/16 23:29:09 Taken 2015/02/24 18:24:29 fscholz Web/API/CanvasRenderingContext2D.addHitRegion Web/API/CanvasRenderingContext2D/addHitRegion