The MIME component allows for the simple encoding and decoding of MIME structures such as message attachments, file uploads, etc.
The component may be used for decoding or encoding of messages. Message holds the content of the encoded message or the filename which holds the encoded data. The decoded data is provided in Parts collection.
To decode a MIME message you should first assign either the whole message (headers and body) to Message or put the message headers into the MessageHeaders property and the message body or the filename holding it into the Message property. Calling DecodeFromFile or DecodeFromString directs the component to start parsing the message: it will fill out the ContentType, ContentTypeAttr properties with message content type information, and enter information about message parts into the Parts collection, which includes: part sizes, part content types, part content type attributes, part content disposition, part content disposition attributes, part encoding, part name, part filename, part headers, or part content (part decoded string or part decoded file) for each decoded part.
Calling the DecodeFromString or DecodeFromFile to decode doesn't actually decode the message but only parses it. The real decoding is done when the part content in the Parts collection is first accessed.
To encode data into a MIME message you should first assign values for each part to either part decoded string or part decoded file in the Parts collection property, and optionally assign values to the other part attributes in the Parts collection. Assigning a value to the part decoded string or part decoded file through the Parts collection, fills out automatically the part headers into the Parts collection for the respective part. Calling EncodeToFile or EncodeToString directs the component to fill out the Message with the message body and the MessageHeaders with the headers.
The Progress event is fired as the message is parsed and the data is decoded/encoded.
The following is the full list of the properties of the component with short descriptions. Click on the links for further details.
|Boundary||The boundary separating the MIME parts. Maximum length of 80 bytes.|
|ContentType||The value of the content-type header of the message which was encoded/decoded.|
|ContentTypeAttr||The attributes for content-type header of the message which was encoded/decoded.|
|Message||Contains the encoded message text or a path to a file which contains the encoded message text.|
|MessageHeaders||The headers of the MIME message.|
|MessageHeadersString||String version of the MIME message headers.|
|Parts||Contains information about all parts of a MIME message.|
The following is the full list of the methods of the component with short descriptions. Click on the links for further details.
|config||Sets or retrieves a configuration setting.|
|decodeFromFile||Decodes from file.|
|decodeFromStream||Decodes from stream.|
|decodeFromString||Decodes from string.|
|encodeToFile||Encodes to file.|
|encodeToStream||Encodes to stream.|
|encodeToString||Encodes to string.|
|reset||Reset the component.|
|resetData||Resets the values of all headers and Part- properties.|
The following is the full list of the events fired by the component with short descriptions. Click on the links for further details.
|Error||Information about errors during data delivery.|
|Header||Fired every time a header is parsed.|
|Progress||Shows the progress of decoding/encoding the input data.|
The following is a list of configuration settings for the component with short descriptions. Click on the links for further details.
|AlternateCharsetNames||Maps alternate charset names to the specified name.|
|FoldHeaders||Tells the component whether to fold the headers.|
|IncludeHeaders||Tells the component whether to include the headers when encoding the message.|
|MaxParts||The maximum number of parts to be parsed from a mime message.|
|RequireVersionHeader||Specifies whether or not the component should require the version header.|
|SanitizeFilename||Whether invalid characters are replaced in MIME part filenames.|
|TempFilePath||If set, the temporary files created during MIME decoding and encoding will be put in the path specified.|
|BuildInfo||Information about the product's build.|
|GUIAvailable||Tells the component whether or not a message loop is available for processing events.|
|LicenseInfo||Information about the current license.|
|UseDaemonThreads||Whether threads created by the component are daemon threads.|
|UseInternalSecurityAPI||Tells the component whether or not to use the system security libraries or an internal implementation.|