CAMThread::CheckRequest

  • 项目

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

BOOL CheckRequest(
  DWORD* pParam
);

Parameters

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

Return Values

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

DirectShow applications and DirectShow filters have different include file and link library requirements. See Setting Up the Build Environment for more information.

OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
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Last updated on Wednesday, April 13, 2005

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