IBaseFilter::QueryFilterInfo (Windows CE 5.0)
This method returns information about the filter.
HRESULT QueryFilterInfo(FILTER_INFO* pInfo);
Parameters
- pInfo
[out] Pointer to a FILTER_INFO structure.
Return Values
Returns an HRESULT value that depends on the implementation.
HRESULT can be one of the following standard constants or other values not listed.
| Value | Description |
|---|---|
| E_FAIL | Failure. |
| E_POINTER | Null pointer argument. |
| E_INVALIDARG | Invalid argument. |
| E_NOTIMPL | Method is not supported. |
| S_OK or NOERROR | Success. |
Remarks
The FILTER_INFO structure is defined as follows.
typedef struct _FilterInfo {
[string] WCHAR achName[MAX_FILTER_NAME]; // allowed to be null
IFilterGraph * pGraph; // null if not part of graph
} FILTER_INFO ;
On return, if the pGraph member of the FILTER_INFO structure is non-NULL, it will have an outstanding reference count and should be released when the interface is no longer needed.
Requirements
DirectShow applications and DirectShow filters have different include file and link library requirements.
For more information, see Setting Up the Build Environment.
ocket PC: Windows Mobile 5.0 and later
Smartphone: Windows Mobile 5.0 and later
OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
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