IQualityControl::SetSink
| Microsoft DirectShow 9.0 |
IQualityControl::SetSink
The SetSink method sets the IQualityControl object that will receive quality messages.
Syntax
HRESULT SetSink( IQualityControl *piqc );
Parameters
piqc
Pointer to the IQualityControl object to which the notifications should be sent.
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.
| Return code | Description |
| E_FAIL | Failure. |
| E_POINTER | Null pointer argument. |
| E_INVALIDARG | Invalid argument. |
| E_NOTIMPL | Method isn't supported. |
| S_OK or NOERROR | Success. |
Remarks
The filter that receives a call to this method should record the piqc but should not add a reference count to it. The object pointed to will be a quality manager and will be a part of the filter graph (for example, a plug-in distributor). Adding a reference count to this could cause circular reference problems.
The reference to the object specified in piqc is guaranteed to be valid until this method is called with a null value.
Requirements
Header: Declared in Strmif.h; include Dshow.h.
Library: Use Strmiids.lib.
See Also