47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
//==========================================================================;
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//
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// closedcaptioningimpl.h : additional infrastructure to support implementing IMSVidClosedCaptionings
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// nicely from c++
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// Copyright (c) Microsoft Corporation 1999.
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//
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/////////////////////////////////////////////////////////////////////////////
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#pragma once
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#ifndef CLOSEDCAPTIONINGIMPL_H
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#define CLOSEDCAPTIONINGIMPL_H
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#include "featureimpl.h"
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namespace MSVideoControl {
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template<class T, LPCGUID LibID, LPCGUID KSCategory, class MostDerivedInterface = IMSVidClosedCaptioning>
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class DECLSPEC_NOVTABLE IMSVidClosedCaptioningImpl : public IMSVidFeatureImpl<T, LibID, KSCategory, MostDerivedInterface> {
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public:
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IMSVidClosedCaptioningImpl() : m_fCCEnable(false) {}
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bool m_fCCEnable;
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STDMETHOD(put_Enable)(VARIANT_BOOL fEnable) {
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m_fCCEnable = (fEnable == VARIANT_TRUE);
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return NOERROR;
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}
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STDMETHOD(get_Enable)(VARIANT_BOOL *pfEnable) {
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if (!pfEnable) {
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return E_POINTER;
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}
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try {
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*pfEnable = m_fCCEnable ? VARIANT_TRUE : VARIANT_FALSE;
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return NOERROR;
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} catch(...) {
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return E_POINTER;
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}
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}
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};
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}; /// namespace
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#endif
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// end of file - closedcaptioningimpl.h
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