declare namespace Ext {
    export namespace dd {
        export interface DDConfig {
        }

        export class DD extends Ext.dd.DragDrop  {
            public scroll?: boolean;
            public alignElWithMouse(el?: HTMLElement, iPageX?: number, iPageY?: number): void;
            public autoOffset(iPageX?: number, iPageY?: number): void;
            public b4Drag(e?: object): void;
            public b4MouseDown(e?: object): void;
            public cachePosition(iPageX?: number, iPageY?: number): void;
            public setDelta(iDeltaX?: number, iDeltaY?: number): void;
            public setDragElPos(iPageX?: number, iPageY?: number): void;
        }
    }
}