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CAMThread::CheckRequest

  • Artículo
 
Microsoft DirectShow 9.0

CAMThread::CheckRequest

The CheckRequest method checks if there is a request, without blocking.

Syntax

  BOOL CheckRequest(
    DWORD *pParam
);

Parameters

pParam

Pointer to a variable that receives the value passed in the last call to the CAMThread::CallWorker method.

Return Value

Returns TRUE if there is a pending request, or FALSE otherwise.

Remarks

This method is a non-blocking version of the CAMThread::GetRequest method.

If another thread is waiting on a call to CallWorker, this method retrieves the request parameter and returns TRUE. Otherwise, it returns FALSE. If the method returns TRUE, call the CAMThread::Reply method to release the requesting thread.

Requirements

**  Header:** Declared in Wxutil.h; include Streams.h.

**  Library:** Use Strmbase.lib (retail builds) or Strmbasd.lib (debug builds).

See Also