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CAMThread.CoInitializeHelper method

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[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 CoInitializeHelper method calls the CoInitializeEx function at the start of the thread.

Syntax

static HRESULT CoInitializeHelper();

Parameters

This method has no parameters.

Return value

Returns an HRESULT value. The following are possible values.

Return code Description
S_FALSE
 The CoInitializeEx function is not available.
S_OK
 Success.
E_FAIL
 Failure.

Remarks

The CAMThread::InitialThreadProc method calls this helper method, which calls the CoInitializeEx function. It uses the COINIT_DISABLE_OLE1DDE flag, to disable Dynamic Data Exchange (DDE). For more information, see the Platform SDK.

Requirements

Requirement Value
Header
Wxutil.h (include Streams.h)
Library
Strmbase.lib (retail builds);
Strmbasd.lib (debug builds)

See also

CAMThread Class