The PixelMemoryFactoryParameters type exposes the following members.
Sets or gets the requested height of the image in scan lines
Sets or gets the requested total number of bytes needed for the memory. This should be no less than height * rowStride + offsetToFirstScanline, but it can be more.
Sets or gets the offset in bytes to the first scan line from the start of memory.
Sets or gets the length of a scan line in bytes. This should be a multiple of 4.
Sets or gets whether or not memory will be set to zero upon allocation