117 lines
2.9 KiB
C++
117 lines
2.9 KiB
C++
/////////////////////////////////////////////////////////////////////////////////////
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// ChannelTuneRequestimpl.h : implementation helper template for component type interface
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// Copyright (c) Microsoft Corporation 1999.
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#ifndef CHANNELTUNEREQUESTIMPL_H
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#define CHANNELTUNEREQUESTIMPL_H
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#include <tune.h>
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#include "tunerequestimpl.h"
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namespace BDATuningModel {
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template<class T,
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class MostDerived = IChannelTuneRequest,
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LPCGUID iid = &__uuidof(MostDerived),
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LPCGUID LibID = &LIBID_TunerLib,
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WORD wMajor = 1,
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WORD wMinor = 0,
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class tihclass = CComTypeInfoHolder
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> class ATL_NO_VTABLE IChannelTuneRequestImpl :
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public ITuneRequestImpl<T, MostDerived, iid, LibID, wMajor, wMinor, tihclass>
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{
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// IChannelTuneRequest
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public:
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typedef ITuneRequestImpl<T, MostDerived, iid, LibID, wMajor, wMinor, tihclass> basetype;
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IChannelTuneRequestImpl() : m_Channel(-1) {}
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virtual ~IChannelTuneRequestImpl() {}
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BEGIN_PROP_MAP(IChannelTuneRequestImpl)
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CHAIN_PROP_MAP(basetype)
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PROP_DATA_ENTRY("Channel", m_Channel, VT_I4)
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END_PROP_MAP()
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long m_Channel;
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STDMETHOD(get_Channel)(long *pVal)
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{
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try {
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if (!pVal) {
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return E_POINTER;
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}
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ATL_LOCKT();
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*pVal = m_Channel;
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} catch (...) {
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return E_POINTER;
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}
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return NOERROR;
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}
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STDMETHOD(put_Channel)(long newVal)
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{
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ATL_LOCKT();
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if (!m_TS) {
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return E_UNEXPECTED;
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}
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long maxval;
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long minval;
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TNAnalogTVTuningSpace ts(m_TS);
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if (ts) {
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maxval = ts.MaxChannel();
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minval = ts.MinChannel();
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} else {
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TNAnalogRadioTuningSpace ts2(m_TS);
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if (ts2) {
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maxval = ts2.MaxFrequency();
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minval = ts2.MinFrequency();
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} else {
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TNAuxInTuningSpace ts3(m_TS);
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if(ts3){
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maxval = 1;
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minval = 0;
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}
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else{
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return E_UNEXPECTED;
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}
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}
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}
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if (newVal != BDA_UNDEFINED_CHANNEL) {
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if (newVal < minval) {
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newVal = maxval;
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} else if (newVal > maxval) {
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newVal = minval;
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}
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}
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m_Channel = newVal;
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MARK_DIRTY(T);
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return NOERROR;
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}
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STDMETHOD(Clone) (ITuneRequest **ppTR) {
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try {
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if (!ppTR) {
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return E_POINTER;
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}
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ATL_LOCKT();
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HRESULT hr = basetype::Clone(ppTR);
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if (FAILED(hr)) {
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return hr;
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}
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T* pt = static_cast<T*>(*ppTR);
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pt->m_Channel = m_Channel;
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return NOERROR;
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} catch (HRESULT h) {
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return h;
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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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typedef CComQIPtr<IChannelTuneRequest> PQChannelTuneRequest;
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}; // namespace
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#endif // CHANNELTUNEREQUESTIMPL_H
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// end of file -- channeltunerequestimpl.h
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