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#define EOG_METADATA_READER_GET_INTERFACE (o) EogMetadataReader; EogMetadataReaderInterface; enum EogMetadataFileType; EogMetadataReader * eog_metadata_reader_new (EogMetadataFileType type); void eog_metadata_reader_consume (EogMetadataReader *emr,const guchar *buf,guint len); gboolean eog_metadata_reader_finished (EogMetadataReader *emr); void eog_metadata_reader_get_exif_chunk (EogMetadataReader *emr,guchar **data,guint *len); ExifData * eog_metadata_reader_get_exif_data (EogMetadataReader *emr); XmpPtr eog_metadata_reader_get_xmp_data (EogMetadataReader *emr); gpointer eog_metadata_reader_get_iptc_chunk (EogMetadataReader *emr); IptcData * eog_metadata_reader_get_iptc_data (EogMetadataReader *emr); cmsHPROFILE eog_metadata_reader_get_icc_profile (EogMetadataReader *emr);
EogMetadataReader is implemented by EogMetadataReaderJpg and EogMetadataReaderPng.
#define EOG_METADATA_READER_GET_INTERFACE(o) (G_TYPE_INSTANCE_GET_INTERFACE ((o), EOG_TYPE_METADATA_READER, EogMetadataReaderInterface))
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typedef struct {
	GTypeInterface parent;
	void		(*consume)		(EogMetadataReader *self,
						 const guchar *buf,
						 guint len);
	gboolean (*finished)		(EogMetadataReader *self);
	void		(*get_raw_exif)		(EogMetadataReader *self,
						 guchar **data,
						 guint *len);
	gpointer (*get_exif_data) (EogMetadataReader *self);
	gpointer (*get_icc_profile) (EogMetadataReader *self);
	gpointer (*get_xmp_ptr)		(EogMetadataReader *self);
} EogMetadataReaderInterface;
EogMetadataReader *    eog_metadata_reader_new          (EogMetadataFileType type);
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void eog_metadata_reader_consume (EogMetadataReader *emr,const guchar *buf,guint len);
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gboolean            eog_metadata_reader_finished        (EogMetadataReader *emr);
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void eog_metadata_reader_get_exif_chunk (EogMetadataReader *emr,guchar **data,guint *len);
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ExifData *             eog_metadata_reader_get_exif_data
                                                        (EogMetadataReader *emr);
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XmpPtr              eog_metadata_reader_get_xmp_data    (EogMetadataReader *emr);
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gpointer            eog_metadata_reader_get_iptc_chunk  (EogMetadataReader *emr);
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IptcData *             eog_metadata_reader_get_iptc_data
                                                        (EogMetadataReader *emr);
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cmsHPROFILE         eog_metadata_reader_get_icc_profile (EogMetadataReader *emr);
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