Method

GExiv2Metadataopen_buf

Declaration [src]

gboolean
gexiv2_metadata_open_buf (
  GExiv2Metadata* self,
  const guint8* data,
  glong n_data,
  GError** error
)

Description [src]

Populate metadata from a memory buffer.

The buffer must be an image format supported by Exiv2. If called multiple times, current metadata will be replaced by the content of the last file opened.

When called on an already filled meta-data object (i.e. one that has already been filled by a previous call of gexiv2_metadata_open_path()) and the opening of the new path fails, the object will not revert to its previous state but be in a similar state after calling GExiv2.Metadata.new.

Parameters

data

Type: An array of guint8

A buffer containing the data to be read.

The length of the array is specified in the n_data argument.
The data is owned by the caller of the method.
n_data

Type: glong

The length of the buffer.

error

Type: GError **

The return location for a recoverable error.

The argument can be NULL.
If the return location is not NULL, then you must initialize it to a NULL GError*.
The argument will be left initialized to NULL by the method if there are no errors.
In case of error, the argument will be set to a newly allocated GError; the caller will take ownership of the data, and be responsible for freeing it.

Return value

Type: gboolean

Boolean success indicator.