| Data Member | Description |
| m_bDirty | Specifies whether the property page's state has changed. |
| m_nObjects | Stores the number of objects associated with the property page. |
| m_dwHelpContext | Stores the context identifier for the Help topic associated with the property page. |
| m_dwDocString | Stores the resource identifier associated with the text string that describes the property page. |
| m_dwHelpFile | Stores the resource identifier associated with the name of the Help file that describes the property page. |
| m_dwTitle | Stores the resource identifier associated with the text string that appears in the tab for the property page. |
| m_pPageSite | Points to the IPropertyPageSite interface through which the property page communicates with the property frame. |
| m_ppUnk | Points to an array of IUnknown pointers to the objects associated with the property page. |
| m_size | Stores the height and width of the property page's dialog box, in pixels. |