getBackground() public method

public getBackground ( ) : AbstractBackground
return AbstractBackground
 /**
  * @param \PhpOffice\PhpPresentation\Slide\AbstractSlide $pSlide
  * @param $objWriter
  */
 protected function writeSlideBackground(AbstractSlideAlias $pSlide, XMLWriter $objWriter)
 {
     if (!$pSlide->getBackground() instanceof Slide\AbstractBackground) {
         return;
     }
     $oBackground = $pSlide->getBackground();
     // p:bg
     $objWriter->startElement('p:bg');
     if ($oBackground instanceof Slide\Background\Color) {
         // p:bgPr
         $objWriter->startElement('p:bgPr');
         // a:solidFill
         $objWriter->startElement('a:solidFill');
         // a:srgbClr
         $objWriter->startElement('a:srgbClr');
         $objWriter->writeAttribute('val', $oBackground->getColor()->getRGB());
         $objWriter->endElement();
         // > a:solidFill
         $objWriter->endElement();
         // p:bgPr/a:effectLst
         $objWriter->writeElement('a:effectLst');
         // > p:bgPr
         $objWriter->endElement();
     }
     if ($oBackground instanceof Slide\Background\Image) {
         // p:bgPr
         $objWriter->startElement('p:bgPr');
         // a:blipFill
         $objWriter->startElement('a:blipFill');
         // a:blip
         $objWriter->startElement('a:blip');
         $objWriter->writeAttribute('r:embed', $oBackground->relationId);
         // > a:blipFill
         $objWriter->endElement();
         // a:stretch
         $objWriter->startElement('a:stretch');
         // a:fillRect
         $objWriter->writeElement('a:fillRect');
         // > a:stretch
         $objWriter->endElement();
         // > a:blipFill
         $objWriter->endElement();
         // > p:bgPr
         $objWriter->endElement();
     }
     /**
      * @link : http://www.officeopenxml.com/prSlide-background.php
      */
     if ($oBackground instanceof Slide\Background\SchemeColor) {
         // p:bgRef
         $objWriter->startElement('p:bgRef');
         $objWriter->writeAttribute('idx', '1001');
         // a:schemeClr
         $objWriter->startElement('a:schemeClr');
         $objWriter->writeAttribute('val', $oBackground->getSchemeColor()->getValue());
         $objWriter->endElement();
         // > p:bgRef
         $objWriter->endElement();
     }
     // > p:bg
     $objWriter->endElement();
 }