The Windowing parameters are optional; however, if either is present, both shall be present. If only one is present the origin server shall return a 400 (Bad Request) response, and may include a payload containing an appropriate error message.

The Windowing and Presentation State parameters shall not be present in the same request. If both are present the origin server shall return a 400 (Bad Request) response, and may include a payload containing an appropriate error message.

The Windowing parameters shall not be present if contentType is application/dicom; if either is present the origin server shall return a 400 (Bad Request) response, and may include a payload containing an appropriate error message.