|Microsoft DirectX 9.0|
The OnWaitStart method is called when the filter starts waiting for a sample's presentation time.
virtual void OnWaitStart(void);
The CBaseRenderer::WaitForRenderTime method calls this method when it begins waiting for a sample's presentation time. This method does not do anything in the base class, but the derived class can override it.
If you are implementing quality control, you might override this method along with the CBaseRenderer::OnWaitEnd method. You can use these methods to track the filter's performance.