Objects that are invoked through virtual function table (VTBL) binding need to use the Automation error handling interfaces and functions to define and return error information.
In this section
| Topic | Description |
|---|---|
| Returning Error Information |
Describes how to return error information. |
| Retrieving Error Information |
Describes how to retrieve error information. |
| ICreateErrorInfo |
Returns error information. |
| IErrorInfo |
Provides detailed contextual error information. |
| ISupportErrorInfo |
Ensures that error information can be propagated up the call chain correctly. Automation objects that use the error handling interfaces must implement ISupportErrorInfo. |