Encapsulated Color Pointer Update structure which contains information about the pointer. The Color Pointer Update fields are all used, as specified in section ; however, the XOR mask data alignment packing is slightly different. For monochrome (1 bit-per-pixel) pointers the XOR data is always padded to a 4-byte boundary per scan line, while color pointer XOR data is still packed on a 2-byte boundary. Color XOR data is presented in the color depth described in the xorBpp field (for 8 bits-per-pixel, each byte contains one palette index; for 4 bits-per-pixel there are two palette indices per byte).