| Microsoft DirectX 9.0 | 
The IAMExtendedErrorInfo interface is used to obtain error information.
In addition to the methods inherited from IDispatch, the IAMExtendedErrorInfo interface exposes the following methods.
| Method | Description | 
| get_ErrorCode | Retrieves the current error code. | 
| get_ErrorDescription | Retrieves the error description. | 
| get_HasError | Queries whether an error occurred. | 
Requirements
Requires Qnetwork.h. To define the interface identifier, include Initguid.h before Qnetwork.h, but after Dshow.h:
#include <dshow.h>
#include <initguid.h>
#include <qnetwork.h>
Make sure that Initguid.h gets included only once in your project.