Hence, this layer will be 50 pixels down from the top and 75 pixels in from the left of the screen, and will be 200 pixels wide. The CLIP parameter specifies a clipping rectangle using 4 numbers that specify, respectively, the left, top, right, and bottom of the rectangle. The first two numbers, TOP and LEFT, specify the location of the top left corner of the clipping rectangle. These two points are sufficient to completely specify the size and shape of the rectangle. All these numbers are relative to the top left corner of the layer .
Positive numbers indicate downward and rightward direction.
Thus in the example above, the top left corner of the clipping rectangle will inset rightward 20 pixels and downward 30 pixels from the top left corner of the layer . The bottom right corner of the clipping rectangle will be 180 pixels rightward and 300 pixels downward from the upper left corner of the layer . This clipping rectangle is smaller than the layer and lies inside it. If you specify a background color for the layer, the color will flood the entire clipping area . Negative numbers indicate leftward and upward direction.