The IExternalResources interface represents a collection of the presentation's external resources found with the IPresentation.Scan method. This interface can be obtained using the IPresentationInfo.ExternalResources property.
Table 1. Properties
| Property | Value Type | Access | Property description | 
|---|
| Item[] or [] | IExternalResource | Read only | Gets an external resource from the collection. Use Item[] in C++.
  | 
| Count | int | Read only | Returns the number of external resources in the collection. |