QMessageContentContainerId Class Reference

Detailed Description

The QMessageContentContainerId class provides a unique identifier for QMessageContentContainer internet media (MIME) type entities, within the scope of the containing message.

A QMessageContentContainerId can be constructed from a string, or converted to a string with toString().

The identifier of the containing (parent) message is return by messageId()

A QMessageContentContainerId instance can be tested for validity with isValid(), and compared to other instances for equality.

If the object a QMessageContentContainerId identifies is removed then the identifier may be reused.

If the QMessageContentContainerId refers to an object that has a parent container, and the contents of that parent container are modified by removing or prepending contents (i.e. message attachments are removed or a message body is created) or the parent container itself is removed then the identifier may become invalid, or be reused to reference a different object entirely.