CBaseRenderer.WaitForReceiveToComplete method
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The WaitForReceiveToComplete method waits for the CBaseRenderer::Receive method to complete.
Syntax
void WaitForReceiveToComplete();
Parameters
This method has no parameters.
Return value
This method does not return a value.
Remarks
The CBaseRenderer::Stop and CBaseRenderer::BeginFlush methods call this method to synchronize the state change with the Receive method.
Specifically, this method dispatches messages while it waits for the CBaseRenderer::m_bInReceive flag to become FALSE. The flag becomes TRUE in the CBaseRenderer::PrepareReceive method and switches back to FALSE after the Receive method calls the CBaseRenderer::PrepareRender method. The derived class can use PrepareRender to set the palette. Waiting for PrepareRender to complete ensures that palette-change messages are dispatched before the state change occurs. This avoids a potential deadlock.
Requirements
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