Interface: PreviewOptions

Options for PrinterAdapter.createPreview().

Only media? is part of the contract — rendering knobs like threshold and dithering are driver-specific concerns that belong on the driver's own options, not on this cross-family interface.

Properties

Property	Type	Description
media?	MediaDescriptor	Override detected media. Use when: - the printer can't detect media (e.g. LabelWriter 450, LabelManager); - designing offline for a specific media type; - testing with a specific media configuration. If omitted, the driver uses detected media from the last getStatus(). If no status is available and no override is provided, the driver falls back to single-colour at its native head width and sets PreviewResult.assumed = true.