Clears the buffered thumbnail representations of one or all pages.
| Ö | Imaging for Windows Professional Edition V1.0, V1.1, and V2.0 | 
| Ö | Imaging for Windows 95 and 98 | 
| Ö | Imaging for Windows NT 4.0 | 
Image Thumbnail control
object.ClearThumbs PageNumber
| Parameter | Data Type | Description | 

| PageNumber | Long | Optional. If a value is not specified, a default value of 0 (zero) is assumed. The value 0 clears all pages. The one (1) relative page number that corresponds to the page whose thumbnail will be cleared | 
Thumbnails that have been cleared will be regenerated either when needed for display, or by calling the GenerateThumb method.