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Override this member function to handle notification of a change of start time.
virtual HRESULT ChangeStart( ) PURE;
Return Values
Returns an HRESULTvalue that depends on the implementation. HRESULTcan be one of the following standard constants, or other values not listed.
| E_FAIL | Failure. |
| E_POINTER | Null pointer argument. |
| E_INVALIDARG | Invalid argument. |
| E_NOTIMPL | Method isn't supported. |
| S_OK or NOERROR | Success. |
Remarks
This member function is called when a new start position has been requested by a call to IMediaPosition::put_CurrentPosition. Override this and change the data sent; typically, this will be by a call to CBaseInputPin::BeginFlushand CBaseInputPin::EndFlush, and then sending samples marked with new time stamps.