Why am I unable to delete an annotation using an empty string in SIMULINK 6.3 (R14SP3)?

When I try to delete annotations by first getting the handle of the annotation and then setting the "Text" to the empty string by referring to the documentation Section 'Creating Annotations Programmatically',

h = find_system('test', 'FindAll', 'on', 'Type', 'annotation');

set_param(h, 'Name', '');

I receive the following warning and the annotation is not deleted, although the documentation still advocates this method:

 Warning: You cannot set an annotation name to an empty string.

Answer 1

[MathWorks Support Team]

In releases before Simulink 6.5, there is an error in the documentation for deleting annotations under 'Creating Annotations Programmatically'. The documentation should read as follows:

To delete an annotation, use the find_system command to get the annotation's handle and then use DELETE function for e.g.,

delete(find_system(gcs, 'FindAll', 'on', 'type', 'annotation'));