XPS Documents Glossary
- advance width
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The distance from the origin of one glyph to the origin of the next glyph.
- bidi level
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See definition for: bidirectional text level.
- bidi text level
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See definition for: bidirectional text level.
- bidirectional nesting level
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See definition for: bidirectional text level.
- bidirectional text level
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The value that specifies the current text direction.
- bleed box
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The area that includes crop marks and extends outside the physical page.
- color channel
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One of several independent colors that are combined to define a final color value.
- color interpolation
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The conversion of a color value that is defined in one color system for use in another color system.
- deep copy
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The operation that copies not only the object but also all of the contents that are referenced by the object.
- device font
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A font that is supported directly on a device (such as a printer).
- DigestMethod
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The algorithm that is used to compute a digital signature.
- dirty
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Of, pertaining to, or characteristic of the condition where something has changed in memory but the change has not been saved to a more permanent storage device such as a disk.
- discardable resource parts
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Package parts that are listed in the DiscardControl part. Per XML Paper Specification, in an XPS document the DiscardControl part contains a list of resources that can be discarded in a resource-constrained environment.
- escape sequence
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A sequence of printable characters that are used to replace an unprintable or reserved character in a string.
- escaped name
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A text string where each reserved or unprintable character has been replaced by a sequence of characters called an escape sequence.
- escaped string
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A string where special and non-printable characters have been replaced with escape sequence strings.
- fixed document
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The XPS document part that describes the sequence of FixedPage parts.
- fixed document sequence
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The XPS document part that describes the sequence of FixedDocument parts.
- fixed page
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The XPS document part that describes the content of a page in a fixed document.
- font collection
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A collection of font resources in an XPS document.
- font embedding
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The process of including font resources in a document.
- font entry
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For font resources that contain multiple fonts, this is the index of an individual font.
- font resource
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The resource in an XPS document that contains the font information.
- glyph run
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A continuous run of characters that share a common format.
- gradient path
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In a linear gradient, the line that is perpendicular to the change in color from one gradient point to another. In a radial gradient, a line between the gradient origin and the ellipse that bounds the gradient region.
- gradient region
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Inside a geometry, the area in which the gradient is defined.
- gradient stop
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A specific color that is defined for a location within the gradient region. Gradient stops are used to define the color at specific locations along the gradient path.
- image brush
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A brush that uses an image to fill an area or shape.
- image resource
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A document resource that contains an image that is used in a document.
- incomplete signature
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A signature that is invalid because it is missing a required component.
- incompliant signature
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A signature that is invalid because it is not constructed properly.
- in-memory document
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A group of XPS document components that have been created or modified in memory but have not been saved to a permanent storage medium such as a disk.
- language tag string
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A string that identifies a specific language.
- obfuscating a font
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Making the font name and resource contents more difficult to extract and copy.
- part interleaving
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In an XPS document, the process of breaking down document parts into smaller physical components that provide more efficient data transfer in some usage scenarios.
- path
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A single two-dimensional shape that is made up of one or more line segments.
- print ticket
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An object that contains information about how to format document content for printing or viewing.
- PrintCapabilities
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A structured description, formatted as XML data, of the features supported by a printer.
- PrintTicket
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A structured description of the printer features and settings that are used for printing a document or a portion of a document, such as a page. PrintTicket objects can be stored as document parts or memory streams.
- PrintTicket part
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An XPS document part that contains a print ticket.
- segment data array
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An array of data values that describes the segments in a path.
- segment types array
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An array of data values that describes the segment types that are listed in a segment data array.
- signature intent string
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The text string that describes the implications of signing a document.
- signature method
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The algorithm that is used to compute the hash value of a digital signature.
- signature request
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A request to sign an XPS document.
- signing spot
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The location on a page where a signature request block is to be displayed.
- spread area
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In a geometry that contains a gradient, the area inside the geometry that lies outside the gradient region.
- unescaped name
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A name expressed as a text string in which unprintable and reserved characters (such as space and tab) have not been replaced by escape sequences.
- XPS document
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An OPC package that conforms to the XML paper specification. An XPS document can be stored as a file or a memory stream.
- XPS Object Model
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The rules that guide the relationships between the XPS document objects that describe the contents of an XPS document.
- XPS object model document tree
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The hierarchical relationship of the objects in the XPS document API.
- XPS OM
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The programming objects whose relationships are defined by the XPS Object Model.
- XPS package
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An XPS document that is saved to a file as an OPC package that complies with the XML Paper Specification.
- XPSDrv
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A printer driver or a printer driver component that supports the XPS print path that was introduced in Windows Vista.