public function windowDisplay(Int $window, Int $clientArea = 0) : GD
    {
        $this->canvas = imagegrabwindow($window, $clientArea);

        return $this;
    }
public function windowDisplay(Int $window, Int $clientArea = 0) : GD
    {
        $this->canvas = imagegrabwindow($window, $clientArea);

        return $this;
    }
public function windowDisplay ( Int $ window , Int $ clientArea = 0 ) : GD { $ this -> canvas = imagegrabwindow ( $ window , $ clientArea ) ; return $ this ; }
Set window display

@param int $window
@param int $clientArea = 0

@return GD
Set window display