478 	public $m_nWidth;  variable in CGIFFILEHEADER
494 		unSet($this->m_nWidth);
516 		$this->m_nWidth  = $this->w2i(substr($lpData, 6, 2));
518 		if (!$this->m_nWidth || !$this->m_nHeight) {
556 	public $m_nWidth;  variable in CGIFIMAGEHEADER
571 		unSet($this->m_nWidth);
588 		$this->m_nWidth  = $this->w2i(substr($lpData, 4, 2));
591 		if (!$this->m_nWidth || !$this->m_nHeight) {
781 				$lne = substr($this->m_data, 0, $this->m_gih->m_nWidth);
782 				$this->m_data = substr($this->m_data, $this->m_gih->m_nWidth);
785 					substr($data, 0, $y * $this->m_gih->m_nWidth) .
787 					substr($data, ($y + 1) * $this->m_gih->m_nWidth);
863 		$width  = $gfh->m_nWidth;
899 		$nPxl = ($this->m_gfh->m_nHeight - 1) * $this->m_gfh->m_nWidth;
901 		$nPad = ($this->m_gfh->m_nWidth % 4) ? 4 - ($this->m_gfh->m_nWidth % 4) : 0;
903 			for ($x = 0; $x < $this->m_gfh->m_nWidth; $x++, $nPxl++) {
907 					($x <  ($this->m_img->m_gih->m_nLeft + $this->m_img->m_gih->m_nWidth)) &&
929 			$nPxl -= $this->m_gfh->m_nWidth << 1;
946 		$out .= $this->dword($this->m_gfh->m_nWidth);
1003 			for ($x = 0; $x < $this->m_gfh->m_nWidth; $x++, $nPxl++) {
1007 					($x <  ($this->m_img->m_gih->m_nLeft + $this->m_img->m_gih->m_nWidth)) &&
1030 		$tmp .= $this->ndword($this->m_gfh->m_nWidth);
1090 		$PlottingIMG = imagecreate($this->m_gfh->m_nWidth, $this->m_gfh->m_nHeight);
1103 		$nPxl = ($this->m_gfh->m_nHeight - 1) * $this->m_gfh->m_nWidth;
1108 			for ($x = 0; $x < $this->m_gfh->m_nWidth; $x++, $nPxl++) {
1112 					($x <  ($this->m_img->m_gih->m_nLeft + $this->m_img->m_gih->m_nWidth)) &&
1125 			$nPxl -= $this->m_gfh->m_nWidth << 1;
1152 		return $this->m_gfh->m_nWidth;