Virtual Method
GeglMetadataiter_lookup
Declaration [src]
gboolean
iter_lookup (
GeglMetadata* metadata,
GeglMetadataIter* iter,
const gchar* key
)
Description [src]
Look up the specified key and initialise an iterator to reference the
associated metadata. The iterator is used in conjunction with
gegl_metadata_set_value() and gegl_metadata_get_value(). Note that this
iterator is not valid for gegl_metadata_iter_next().
Parameters
iter-
Type:
GeglMetadataIterGeglMetadataIterto be initialised.The data is owned by the caller of the function. key-
Type:
const gchar*Name of the value look up.
The data is owned by the caller of the function. The value is a NUL terminated UTF-8 string.