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2.2.28 OfficeArtBlipPNG

Office

Referenced by: OfficeArtBlip

The OfficeArtBlipPNG record specifies BLIP file data for the Portable Network Graphics (PNG) format.


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rh

...

rgbUid1 (16 bytes)

...

...

rgbUid2 (16 bytes, optional)

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tag

BLIPFileData (variable)

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rh (8 bytes): An OfficeArtRecordHeader structure, as defined in section 2.2.1, that specifies the header for this record. The following table specifies the subfields.

Field

Meaning

rh.recVer

A value that MUST be 0x0.

rh.recInstance

A value of 0x6E0 to specify one UID, or a value of 0x6E1 to specify two UIDs.

rh.recType

A value that MUST be 0xF01E.

rh.recLen

An unsigned integer that specifies the number of bytes following the header. This value MUST be the size of BLIPFileData plus 17 if recInstance equals 0x6E0, or the size of BLIPFileData plus 33 if recInstance equals 0x6E1.

rgbUid1 (16 bytes): An MD4 message digest, as specified in [RFC1320], that specifies the unique identifier of the uncompressed BLIPFileData.

rgbUid2 (16 bytes): An MD4 message digest, as specified in [RFC1320], that specifies the unique identifier of the uncompressed BLIPFileData. This field only exists if recInstance equals 0x6E1. If this value exists, rgbUid1 MUST be ignored.

tag (1 byte): An unsigned integer that specifies an application-defined internal resource tag. This value MUST be 0xFF for external files.

BLIPFileData (variable): A variable-length field that specifies the PNG data.

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