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CAMThread::CheckRequest (Compact 2013)

  • [アーティクル]

3/26/2014

Determines if there is an outstanding request. This is a nonblocking member function.

Syntax

BOOL CheckRequest(
  DWORD* pParam
);

Parameters

  • pParam
    Parameter that assumes the value passed by the last call to the CAMThread::CallWorker member function.

Return Value

Returns TRUE if an outstanding request is still active, or FALSE is no request is active.

Remarks

If there is an outstanding request, the requesting thread will block until the CAMThread::GetRequest member function is called.

The request remains outstanding (that is, this member function continues to return TRUE) until either the CAMThread::Reply or CAMThread::GetRequest member function is called.

Requirements

Header

dshow.h,
Streams.h

Library

ole32.lib,
Ole32auth.lib,
Strmbase.lib,
Strmiids.lib,
uuid.lib

See Also

Reference

CAMThread Class