ufoRaster ufoRasterAllocCopyPart( ufoRaster raster_instance, int x1, int y1, int x2, int y2, int do_copy_data);
ufoRasterAllocCopyPart allocates a raster of the same type as raster_instance, and of the size defined in the arguments, and return a pointer to the new instance. The pixel values can be optionally copied to the new raster.
Autodesk Softimage v7.5