Method

GeglMetadataiter_lookup

Declaration [src]

gboolean
gegl_metadata_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 GeglMetadataIter
 

GeglMetadataIter to be initialised.

 The data is owned by the caller of the function.
key 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.

Return value

Returns: gboolean
 

TRUE if key is found.