2.2.6 EpsData Object
The EpsData object is a container for EPS data.
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SizeData |
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Version |
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Points (24 bytes) |
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PostScriptData (variable) |
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SizeData (4 bytes): An unsigned integer that specifies the total size of this object in bytes.
Version (4 bytes): An unsigned integer that specifies the PostScript language level. This value is 0x00000001.
Points (24 bytes): An array of three Point28_4 objects (section 2.2.23) that defines the coordinates of the output parallelogram using 28.4 bit FIX notation.
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The upper-left corner of the parallelogram is the first point in this array, the upper-right corner is the second point, and the lower-left corner is the third point. The lower-right corner of the parallelogram is computed from the first three points (A, B, and C) by treating them as vectors.
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D = B + C A
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PostScriptData (variable): An array of bytes of PostScript data. The length of this array can be computed from the SizeData field. This data MAY be used to render an image.<45>
An EpsData object can be used to embed a PostScript image in an EMF metafile as follows:
An EMF metafile contains an EMR_COMMENT_MULTIFORMATS record (section 2.3.3.4.3).
The EMR_COMMENT_MULTIFORMATS record specifies an aFormats field that contains an EmrFormat object (section 2.2.4).
The EmrFormat object specifies a Signature field that is set to EPS_SIGNATURE from the FormatSignature enumeration (section 2.1.14).
The EPS_SIGNATURE value specifies that the FormatData field in the EMR_COMMENT_MULTIFORMATS record contains an EpsData object.
The EmrFormat object also specifies an offData field that indicates where the EpsData object is in the FormatData field in the EMR_COMMENT_MULTIFORMATS record.