CBaseFilter.QueryVendorInfo method
[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 QueryVendorInfo method retrieves a string containing vendor information. This method implements the IBaseFilter::QueryVendorInfo method.
Syntax
HRESULT QueryVendorInfo(
LPWSTR *pVendorInfo
);
Parameters
-
pVendorInfo
-
Address of a variable that receives a pointer to a wide-character string containing the vendor information.
Return value
Returns E_NOTIMPL.
Remarks
To provide vendor information for a filter, override this method. If you implement this method, use the CoTaskMemAlloc function to allocate memory for the string. The caller is responsible for calling the CoTaskMemFree function.
Requirements
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| Library |
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