Filter element in a filter array.
Declaration:
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 Copy Code |
typedef struct tagAT_PDE_FILTERSPEC
{
HIG_PDF_BASOBJ decodeParms;
HIG_PDF_BASOBJ encodeParms;
HIG_PDF_ATOM name;
} AT_PDE_FILTERSPEC;
typedef AT_PDE_FILTERSPEC FAR* LPAT_PDE_FILTERSPEC;
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Members:
| HIG_PDF_BASOBJ |
decodeParms |
Parameters used by the decoding filters specified with the Filter key. Corresponds to the DecodeParms key in the stream dictionary. Must be set to NULL if AT_PDE_FILTERSPEC is specified but no decode parameters are specified. This can be done by zeroing the unused decode params. Required decode params for DCTDecode are Columns, Rows, and Colors. |
| HIG_PDF_BASOBJ |
encodeParms |
Parameters used when encoding the stream. Required for DCTDecode filter; optional for other filters. Must be set to NULL if AT_PDE_FILTERSPEC is specified but no encode parameters are specified. This can be done by zeroing the unused encode params. |
| HIG_PDF_ATOM |
name |
Filter name. Supported filters are: ASCIIHexDecode, ASCII85Decode, LZWDecode, DCTDecode, CCITTFaxDecode, RunLengthDecode, and FlateDecode. |
