function pdfViewScrollPresentationMode(delta) {
    if (!this.pdfPresentationMode) {
      return;
    }
    this.pdfPresentationMode.mouseScroll(delta);
  }
/**
   * @param {number} delta - The delta value from the mouse event.
   */
@param {number} delta - The delta value from the mouse event.
@param { number } delta - The delta value from the mouse event .
function pdfViewScrollPresentationMode(delta) {
    if (!this.pdfPresentationMode) {
      return;
    }
    this.pdfPresentationMode.mouseScroll(delta);
  }
function pdfViewScrollPresentationMode ( delta ) { if ( ! this . pdfPresentationMode ) { return ; } this . pdfPresentationMode . mouseScroll ( delta ) ; }
@param {number} delta - The delta value from the mouse event.
@param { number } delta - The delta value from the mouse event .