The PR_FORM_CATEGORY_SUB property contains the subcategory of a form, as defined by a client application.
| Header file: | MAPITAGS.H |
| May be exposed by: | Form objects |
| Identifier: | 0x3310 |
| Property type: | PT_TSTRING |
| Property tag: | 0x3310001E (0x3310001F for Unicode) |
The PR_FORM_CATEGORY_SUB property is subordinate to the main form category provided in the PR_FORM_CATEGORY property.