IAMExtendedErrorInfo interface (qnetwork.h)
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The IAMExtendedErrorInfo interface is used to obtain error information.
Inheritance
The IAMExtendedErrorInfo interface inherits from the IDispatch interface. IAMExtendedErrorInfo also has these types of members:
Methods
The IAMExtendedErrorInfo interface has these methods.
| IAMExtendedErrorInfo::get_ErrorCode The get_ErrorCode method retrieves the current error code. |
| IAMExtendedErrorInfo::get_ErrorDescription The get_ErrorDescription method retrieves the extended error description. |
| IAMExtendedErrorInfo::get_HasError The get_HasError method queries whether an error occurred. |
Remarks
To define the interface identifier, include the header file Initguid.h before Qnetwork.h, but after Dshow.h and other header files:
#include <dshow.h>
#include <initguid.h>
#include <qnetwork.h>
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | qnetwork.h |