Adding Address Book Entries

To add a messaging user or distribution list to a container, a client calls IAddrBook::NewEntry or a provider calls IMAPISupport::NewEntry with the entry identifier of the target container in the lpEIDContainer parameter. MAPI in turn calls the container's IABContainer::CreateEntry method to create the entry using a one-off template from a one-off table. A one-off template allows the client to create a new recipient of a particular type. Most of the fields are editable. The template pointed to by the lpEntryID parameter might be one that your provider supplies or it might be a template from a foreign provider, if your provider supports foreign templates. Implementations of CreateEntry for providers that can create recipients from a foreign template are always more complex than implementations for providers that cannot.

To implement IABContainer::CreateEntry

1. Determine the type of entry identifier specified by the lpEntryID parameter.
2. If the entry identifier represents a template for a messaging user, distribution list, or address book container owned by your provider:
   1. Create and initialize the appropriate object. Your provider can set some initial properties if desired. These properties depend on the type of recipient being created.
   2. Return a pointer to the object's implementation in the contents of the lppMAPIPropEntry parameter.
3. If the entry identifier represents a template for a foreign provider:
   1. Call IMAPISupport::OpenEntry to open the foreign object.
   2. Call the object's IMAPIProp::GetProps method, passing NULL for the property tag array, to retrieve its properties.
   3. Edit the property value array returned from GetProps by changing the property tag to PR_NULL for all properties that will not apply to the new object and should not be transferred.
   4. Create an entry identifier for the new object.
   5. Create a new object of the appropriate type, either messaging user or distribution list.
   6. Initialize the new object by setting default properties.
   7. Check whether or not the foreign object supports the PR_TEMPLATEID property.
   8. If the foreign object supports PR_TEMPLATEID, call IMAPISupport::OpenTemplateID to retrieve a property object interface from the foreign provider and set the contents of the lppMAPIPropEntry parameter to the foreign property object implementation.
   9. If the foreign object does not support PR_TEMPLATEID, set the contents of the lppMAPIPropEntry parameter to your provider's implementation of the new object.
   10. Call the IMAPIProp::SetProps method of the object pointed to by the lppMAPIPropEntry parameter to set the appropriate properties from the foreign object.