(v13) Modular screening

This page applies to Harlequin v13.1r0 and later; both Harlequin Core and Harlequin MultiRIP.

The Harlequin RIP has dedicated modular Screening interfaces to the core RIP. These interfaces are designed around richer APIs than the DEVICETYPE structure previously used as the main interface to the core RIP. These extended interfaces provide better compile-time type checking, reduced data marshaling and other benefits by comparison with DEVICETYPE.

The clients of the screening interfaces are referred to as modular screening .

Modular screening is principally required to perform Raster halftoning, but they can also choose to receive object-type information for the raster to enable them to vary their screening techniques accordingly. In this role, they are more than simple rasterizers.

Areas of the raster halftoned using the screening interfaces are referred to as modular-screened to differentiate them from the RIP’s built-in screening.

For more information see the API Reference Manual, “Screening interface”.

Error diffusion screening (EDS), performed within certain output plugins. The RIP supplies contone data to such plugins. EDS is not affected by any controls described in this section.