Represents the "MH" entry of the media screen parameters dictionary object.

It is an optional entry defined as part of the PDF 1.0 specification.

It contains an Element.

For definitive details see:.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; Table: 282, page 498.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 293, page 624.

The MH entry references a must-honour screen parameters dictionary specifying display window settings that must be honoured for playback, such as window size policy, position, and monitor selection.