CBaseRenderer::CheckReady (Windows CE 5.0)
Determines if the renderer is ready to process the next sample.
BOOL CheckReady(void);
Parameters
None.
Return Values
Returns TRUE if the m_evComplete event is currently set, but does not block.
Remarks
This member function calls the CAMEvent::Check member function.
This is mainly used in transitioning to paused states.
When a renderer is paused, it should not complete the state change until it receives data. So although the call to IMediaFilter::Pause completes immediately, if the application calls IMediaFilter::GetState it returns VFW_S_STATE_INTERMEDIATE.
When a sample arrives at the renderer, the event that is initially reset during the pause call is signaled. At this point, an application calling IMediaFilter::GetState returns NOERROR.
This process allows an application to pause a filter graph and wait until data is queued and ready to be rendered.
Requirements
DirectShow applications and DirectShow filters have different include file and link library requirements.
For more information, see Setting Up the Build Environment.
OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
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