Package to load. This cannot be null.
Group name to use. This can be null.
This method will call IAnnPackage.GetAutomationObjects of pack, set the value of AnnAutomationObject.GroupName for each AnnAutomationObject to groupName and add them to the Objects collections. After this method finishes, all the objects found in the package will be usable through automation.
For a complete example of an annotation pack, refer to the Leadtools.Annotations.UserMedicalPack sample library shipped with LEADTOOLS.