 (i, j) is inside the rectangle
 (x, y, w, h) is stored in the array at
 <tt>pix[(j - y) * scansize + (i - x) + off]</tt>.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>img</CODE> - the image to retrieve pixels from<DD><CODE>x</CODE> - the x coordinate of the upper left corner of the rectangle
 of pixels to retrieve from the image, relative to the default
 (unscaled) size of the image<DD><CODE>y</CODE> - the y coordinate of the upper left corner of the rectangle
 of pixels to retrieve from the image<DD><CODE>w</