IBaseFilter::QueryFilterInfo (Compact 2013)
3/26/2014
This method returns information about the filter.
Syntax
HRESULT QueryFilterInfo(
FILTER_INFO* pInfo
);
Parameters
- pInfo
[out] Pointer to a FILTER_INFO structure.
Return Value
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
Header |
dshow.h |
Library |
Strmiids.lib |