Used to specify a point position. In 32-bit plug-ins, POINT_PTR is the same as the POINT structure. In 64-bit plug-ins, each field is extended to the 64-bit integer from the 32-bit integer.
Used to specify a size. In 32-bit plug-ins, SIZE_PTR is the same as the SIZE structure. In 64-bit plug-ins, each field is extended to the 64-bit integer from the 32-bit integer.