declare module "windows.graphics" {
  export class PointInt32 {
    x: Number;
    y: Number;
    constructor();
  }

  export class SizeInt32 {
    width: Number;
    height: Number;
    constructor();
  }

  export class RectInt32 {
    x: Number;
    y: Number;
    width: Number;
    height: Number;
    constructor();
  }

}